nitrogen has 7 protons, 7 neutrons, and 7 electrons. what is the atomic number of nitrogen?

Answers

Answer 1

Answer:

14

Explanation:

the addition of the number of protons and neutrons gives the answer

Answer 2

Seven protons make up the nucleus of nitrogen, which has an atomic number of 7. Since it has a mass number of 14, and we know that it has seven protons.

What is nitrogen's atomic number, which is seven?

Furthermore, given that nitrogen has an atomic number of 7, we can infer that it contains seven protons. As a result, the Na atom's atomic number, which is 11, is the same as the sum of its protons and electrons.

How is the atomic number determined?

The number of protons in an atom's nucleus or the number of electrons in an electrically charged atom is its atomic number unbiased atom An atom of sodium, for instance, has 11 protons and 11 electrons.

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Related Questions

order each of the sets of compounds with respect to sn2 reactivity (1 = fastest). compound a compound b compound c

Answers

To determine the reactivity of compounds in an SN2 reaction, the following factors should be considered, Size of the leaving group, Stability of the leaving group, Electron-withdrawing ability of substituents on the substrate.

Size of the leaving group: Smaller leaving groups tend to depart faster, increasing the reaction rate.

Stability of the leaving group: More stable leaving groups tend to depart faster, increasing the reaction rate.

Electron-withdrawing ability of substituents on the substrate: Electron-withdrawing substituents increase the electron density on the carbon, making it a better nucleophile, and slowing the reaction.

Steric hindrance at the reaction site: Increased bulk around the reaction site can impede the approach of the nucleophile and the leaving group, slowing the reaction.

Without the specific compounds, it is not possible to determine their reactivity in an SN2 reaction.

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in the titration of 20.0 ml of 0.200 m hobr with 0.100 m naoh, what is the ph after 20.0 ml of the naoh solution is added? (ka hobr = 2.5 × 10–9)

Answers

In the titration of the 20.0 ml of 0.200 m HOBr with 0.100 M NaOH, The the pH after 20.0 ml of the NaOH solution is added is 10.72.

The moles of the HOBr = moles of the NaOH

Volume ×  0.1 = 0.02 × 0.2

Volume of NaOH = 0.04 L

The moles of the salt = moles of the HOBr

0.02 × 0.2 = 0.004 moles

The total volume of the solution = 0.04 + 0.02

                                                      = 0.06 L

The concentration of salt  = 0.004 / 0.06

                                           = 0.067 M

[OH⁻] = √ aKw / Ka

a = [salt] = 0.067 M

[OH⁻]  = √( 0.067 × 10⁻¹⁴ / 2.5 × 10⁻⁹ ) M

          = 5.18 × 10⁻⁴ M

pOH = -log(5.18 × 10⁻⁴)

pOH = 3.28

pH = 14 - pOH

      = 14 - 3.28

pH = 10.72

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Acetylene gas, C2H2, used in welders' torches, releases 1300 kJ of heat when 1 mole of C2H2 undergoes combustion. What is the balanced equation?

Answers

One has shutoff valves for oxygen, while the other is for acetylene. Some torches come equipped with mixing valves that do not require the usage of oxygen shutdown valves.

What use of Acetylene used in welders' torches?

Acetylene is a good option for gas welding steel because of its high flame temperature. Welding. Acetylene, when burned in oxygen, creates a reducing zone that quickly cleans the metal surface. In the inner flame cone, acetylene discharges roughly 40% of its heat.

This valve, which is usually found on a cutting torch, creates passageways that direct both oxygen and acetylene to the mixing chamber.

Therefore, [tex]2C_2H_2(g)+ 5o_2(g)[/tex]→[tex]4Co_2(g) + 2H_2o(g) + 2600KJ[/tex]  Is the balanced equation. Metal is welded when two parts are heated to a temperature where a shared pool of molten metal forms.

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a solution is made using 270.0 ml of acetone (density 0.7857 g/ml) and 450.0 ml of water (density 1.000 g/ml). what is the molality acetone in water?

Answers

The molality of the solution is 8.22 m.

What is the molality of the acetone?

We have to note that the molality has to do with the ratio of the amount of the substance that have been dissolved to the mass of the solution in kilograms and it is one of units of concentration that we have.

Mass of the acetone = Density * volume

=  270.0 ml * 0.7857 g/ml

= 212 g

Number of moles of the acetone = 212 g/58 g/mol

= 3.7 moles

The molality now is; Number of moles/ Mass of the solution

=  3.7 moles/450 * 10^-3 Kg

= 8.22 m

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what is the hydronium ion [h3o ] concentration of a solution with a ph of 6 ? A) 1 x 106 B) 1 x 10-6 C) 6 x 101 6x D) 6 x 10-1 OE) 6x 10-14

Answers

Answer:  B. 1*10-6 M

What is the Hydronium ion concentration?

The concentration of hydronium ions decreases with dilution as a result of reactions between acid and water ions, leading to the formation of H2O. This makes the solution less acidic as the concentration of hydronium ions decreases.

We know,

pH = - log [H3O+]

where [H3O+] = concentration of hydronium ion

we have pH = 6

6 = - log [H3O+]

Concentration of hydronium ion, [H3O+] = Antilog (-6) = 1*10-6 M

Therefore, option B) 1*10-6 is correct.

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The hydronium ion [h3o ] concentration of a solution with a ph of 6: 1*10-6 M

What is the Hydronium ion concentration?

The concentration of hydronium ions, also known as the acidity or pH of a solution, is typically expressed on a scale from 0 to 14, where 0 indicates a highly acidic solution, 7 indicates a neutral solution, and 14 indicates a highly basic or alkaline solution. The concentration of hydronium ions in a neutral solution is typically around 1 x 10-7 moles per liter (M).

We know,
pH = - log [H3O+]
where [H3O+] = concentration of hydronium ion
we have pH = 6
6 = - log [H3O+]
Concentration of hydronium ion, [H3O+] = Antilog (-6) = 1*10-6 M
Therefore, option B) 1*10-6 is correct.

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During which stage of the water cycle does water from the ocean form clouds?

Explain please?

Answers

Hello!

During the stage of condensation of the water cycle water from the ocean forms into clouds. Condensation, the opposite of evaporation is when water vapor in the air is transformed into liquid water. This stage in the water cycle is important since its role is creating and forming clouds.

Hope this helps!!

The density of solid w is 19. 3 g/cm3. How many atoms are present per cubic centimeter (cm3) of w?.

Answers

6.29x10^22 atoms are present in the 19. 3 g/cm3 of w.

The density of the solid =  19.3 g/cm³.

For every cubic centimeter of tungsten (W) has a mass of 19.3 grams.

The molar mass of tungsten = 183.84 g

Avogadro's number = 6.022x10^23 atoms / moles

The amount of substance in moles =  Mass of solid/ Molar mass of W

Amount of substance in moles = (19.3 g) x (1 mole/ 183.84 g) = 0.1044 moles.

The number of atoms =  the amount in moles X Avogadro's number.

The number of atoms = (0.1044 moles) x (6.022x10^23 atoms/moles)

The Number of atoms = 6.29x10^22 atoms.

Thus, In conclusion,  there are approximately 6.29x10^22 atoms of W.

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a student reacts 2-butanone with 2,2- dimethylpropylmagnesium bromide. which of the following structures is a possible product?

Answers

Multiple potential compounds may result from the reaction of 2,2-dimethylpropylmagnesium bromide with 2-butanone, also known as ethyl methyl ketone.

2,2-dimethyl-2-butanol is one of the probable byproducts of this process. The 2,2-dimethylpropyl group is added to the carbon atom of the ketone group in 2-butanone to create this alcohol in an addition process. Another potential byproduct is 2-butanol, which is created by combining the ethyl group with the carbon atom of the ketone group in 2-butanone. The final result will be determined by a number of variables, including the reaction circumstances and the existence of additional reactants or catalysts. An electromyography study is the compound muscle action potential or compound motor action potential. The sum of numerous practically contemporaneous action potentials from different muscle fibres in the same region is idealised by the CMAP. Typically, this is accomplished by stimulating the motor nerve.

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if a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction
b. remain at rest
c. accelerate in the negative x-direction

Answers

An electric potential field that grows in the positive x-direction will cause an at-rest negatively charged particle to accelerate in that direction.

Around a charged item, the electric field acts as a "force field" to show in which direction an imaginary positively charged particle would be pushed by the electric force. It also demonstrates how powerful of a shove the electric force would provide.

The difference between two points in an electric field in terms of potential energy per unit charge is known as the electric potential, also known as voltage

We are aware that, if we move the particle to a specific location, the electrical potential energy will change depending on the amount of charge we are pushing or pulling, as well as whether it is positive or negative. To measure the electrical potential at any given site, physicists utilise a single positive charge as our model charge.

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under which condition did the co2 indicator turn more alkaline why

Answers

The algae bead could carry out photosynthesis more in the presence of light, which caused the CO2 indicator to become more alkaline.

Describe alkaline.

The meaning of alkaline is: having the characteristics of the an alkali or alkaline metal; being an alkali; or being related to one: a solution that is basic, in particular, and has a pH greater than 7 having the characteristics of a hydroxide or liquid metal; being an alkali; or being related to one: a solution that is particularly basic: whose pH is greater than 7

What characteristics do alkalis have?

Alkali properties. Because fatty acids in skin are saponified, alkaline bases have a slimy or sticky feel to the touch. Alkalis are all Arrhenius bases because they dissolve in water to produce hydroxide ions (OH-). Some alkalis, like barium carbonate, are typically water-soluble.

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The illustration to the left represents a mixture of hydrogen ( light blue ) and oxygen ( red ) reacting to form a product.

Answers

The product formed is H[tex]_2[/tex]( g) + O[tex]_2[/tex]( g) → 2 H[tex]_2[/tex] O ( l). There are two moles of water that is formed when hydrogen and oxygen react.

What is hydrogen?

The simplest chemical element is hydrogen (H), a colorless, odorless, tasteless, and combustible gaseous substance. The nucleus of the hydrogen atom is composed of a proton with one unit of positively electrical current and an electron with one unit of negatively electrical charge.

Under normal circumstances, hydrogen gas is a loose collection of hydrogen molecules, of which each is a diatomic molecule, or H2, made up of two atoms. The product formed is H[tex]_2[/tex]( g) + O[tex]_2[/tex]( g) → 2 H[tex]_2[/tex] O ( l). There are two moles of water that is formed when hydrogen and oxygen react.

Therefore, the product formed is H[tex]_2[/tex]( g) + O[tex]_2[/tex]( g) → 2 H[tex]_2[/tex] O ( l). There are two moles of water that is formed when hydrogen and oxygen react.

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In an IR spectra, there is a peak at 1715 cm-1, the compound will be:

Answers

Identification of the chemicals is aided by analytical spectra. Aliphatic C=O. stretch ketones are detected at 1715 cm-1.

What exactly are spectra, and what different kinds are there?

When electromagnetic radiation passes through a prism or grating, it splits into a number of lines that correspond to various wavelengths. Spectrum describes this. The two types of spectra, emission and absorption spectra, can be distinguished. Below are listed their distinctions from one another.

What do atoms' spectra consist of?

The definition of atomic spectra is. a description of the electromagnetic radiation's spectrum that an electron emits or absorbs as it changes energy levels inside an atom. An excited electron either emits nor absorbs light of a certain wavelength when it transitions of one level of energy to another.

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What is an acid and a base?

Answers

A substance is considered to be acid if it dissolves in water and produces hydrogen ions (H+). A base is a material that, when dissolved in water, produces hydroxide ions, or OH-.

Describe acid.

A compound that creates salts when it combines with specific metals and releases hydronium ions into water. Acids have just a sour taste and give some colours a reddish tint. Acids can frequently be separated into three categories. Binaries acid comes first, then oxyacid finally carboxylic acid.

What causes acid to exist?

They have the capacity to prevent rust on metals, serve as a medium in wet batteries, be an essential part of chemical process industry manufacture, and be used as artificial flavors for drinks and food.

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A solution of toluene in 301 g of cyclohexane has a boiling point of 90.3 °C. How many moles of toluene are in the solution? (For cyclohexane Kb = 2.92 °C/m, Tb = 80.9 °C)

Answers

The moles of toluene are in the solution found to be 0.96mol.

What is the value of m in delta tb?Solutions of any solute are compatible with the equation Tb=Kbm (where Tb is an increase in boiling point and'm' denotes solution molality). Non-volatile solute-only diluted solutions. Non-volatile solutions in all concentrations.

molar mass toluene = 92.14g/mol

Tb = 80.9

Kb = 2.92 °C/m

ΔTb = i x Kbx molarity

90.3-80.9 = 1 x 2.92 x m

3.219 = m

m=> mol/kg of solution

3.219 = mol of toluene/0.301Kg

    =>0.96mol

What is the elevation of the boiling point?

When a solute is introduced, the boiling point of a solvent rises, a process known as boiling point elevation. The solution produced when a non-volatile solute is dissolved in a solvent has a greater boiling point than the solvent alone.

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Smog causes acid rain due to the pollution in the air. It can strip trees of their leaves which prevents photosynthesis. What else is a direct result of smog?.

Answers

Smog causes acid rain due to the pollution in the air. It can strip trees of their leaves which prevents photosynthesis, therefore, option A (the direct result of smog is that plants die because the soil is stripped of its nutrients) is the right choice.

Smog, often known as smoke fog, is a severe kind of air pollution. Early in the 20th century, the words smoke and fog were combined to form the word "smog" because their opacity and smell describe smoky fog.

The phrase was then used to describe the pea soup fog, which was a common and severe issue in London from the 19th century to the middle of the 20th century. This type of observable air pollution is made up of smoke, sulfur dioxide, nitrogen oxides, ozone, and other particulates. Coal combustion emissions, vehicle emissions, industrial emissions, forest and agricultural fires, and photochemical reactions of these emissions are all sources of man-made haze.

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aluminum metal reacts with iron(iii) oxide to produce aluminum oxide and iron metal. Write and balance the chemical equation.

Answers

The balanced chemical equation is Fe2O3+ Al → Fe+ Al2O3

The chemical representation of aluminum metal is Al

The chemical representation of iron (iii) oxide is Fe2O3

The chemical representation of aluminum oxide is Al2O3

The chemical representation of iron metal is Fe

When aluminum metal reacted with iron oxide, it produces aluminum oxide and iron metal. It also produces a large amount of heat.

This type of reaction is called a displacement reaction because iron is displaced by aluminum to form aluminum oxide.

It is also called the redox reaction because the oxidation of aluminum and reduction of iron is taking place at the same time.

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The balanced chemical equation for the reaction between aluminum metal and iron(III) oxide to produce aluminum oxide and iron metal is 2 Al (s) + Fe2O3 (s) -> 2 Fe (s) + Al2O3 (s). This chemical reaction is an oxidation-reduction reaction, which is also known as a single replacement reaction. The reaction produces a large amount of heat and results in a stream of molten iron and aluminum oxide.

The equation can be interpreted as meaning that 2 moles of aluminum react with 1 mole of iron (III) oxide to produce 1 mole of aluminum oxide and 2 moles of iron.

It's important to note that this reaction produces a lot of heat and sparks, which makes it a highly exothermic reaction. The heat generated by the reaction is due to the high charge concentration on the aluminum ion, which allows the oxide ions to approach the aluminum ion more closely than they can approach the ferric ion.

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Given the reaction CaCO3(s) --> CaO(s) + CO2(g), if 50. 0 g of CaCO3 react, what is the percent yield of CO2 if 20. 0 g of CO2 are produced in the lab? *

Answers

To find the percent yield of CO2, we need to compare the actual amount produced in the lab (20.0 g) to the theoretical maximum amount that could have been produced based on the amount of CaCO3 that reacted (50.0 g).

First, we need to determine the theoretical maximum amount of CO2 that could have been produced. To do this, we need to find the stoichiometric amount of CO2 produced from the reaction:

CaCO3(s) -> CaO(s) + CO2(g)

1 mole of CaCO3 reacts with 1 mole of CO2 produced. The molar mass of CaCO3 is 100.09 g/mol, so we can convert 50.0 g of CaCO3 to moles:

50.0 g CaCO3 / 100.09 g/mol = 0.498 mol

The theoretical maximum amount of CO2 produced is then:

0.498 mol CO2 * 44.01 g/mol = 21.97 g

Finally, to find the percent yield, divide the actual amount of CO2 produced in the lab (20.0 g) by the theoretical maximum amount (21.97 g) and multiply by 100:

Percent yield = (Actual yield / Theoretical yield) * 100
Percent yield = (20.0 g / 21.97 g) * 100 = 91.3%

So, the percent yield of CO2 is 91.3%.

2) A half-cell containing Br and Br- is connected to a half-cell containing Mg+2 and Mg to form a voltaic cell. Determine the proper direction for each half cell reaction to assure a spontaneous, complete cell reaction. Find the value of the complete cell electrode potential (E°).

Answers

A half cell is one of the two electrodes in a galvanic cell or simple battery.

Find the value of the complete cell electrode potential (E°)?

Look up the standard reduction potentials for Br and Mg.  I find the following:

Mg2+ + 2e- ==> Mg(s)  Eº = -2.38 V

Br2(l) + 2e- ==> 2Br-(aq)  Eº = 1.07 V

Accordingly, Br2 will be reduced and Mg(s) will be oxidized in order to have a positive potential.

Br2 + 2e- ==> 2Br-

Mg ==> Mg2+ + 2e-

------------------------------------

Br2 + Mg ==> Mg2+ + 2Br-  Eº = 1.07 + 2.38 = 3.45 V

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A solution in which no more solute can be dissolved at a given temperature is classified as: A.Saturated B.Supersaturated C.Unsaturated

Answers

The answer is A saturated

Explanation:

which process moves ions from an area of high concentration?

Answers

The process that moves ions from an area of high concentration to an area of lower concentration is called diffusion.

Diffusion is the movement of particles or substances from an area of high concentration to an area of lower concentration until the concentration of the substance is uniform throughout the space.

Key points:

Diffusion occurs naturally as a result of the random thermal motion of particles.The rate of diffusion is proportional to the concentration gradient (difference in concentration between two areas) and the temperature.Diffusion occurs in liquids, gases, and through membranes.Diffusion plays a role in many biological processes, such as the movement of oxygen and carbon dioxide in the respiratory system, and the absorption of nutrients in the digestive system.Diffusion can also be used in various industrial and technological processes, such as the separation of components of a mixture, and the purification of substances.

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the pka of phenol (a) is around 9, while the pka of cyclohexanol (b) is around 15. why do you think a is more acidic than b.

Answers

One of the important effects on a molecule's acidity is whether the conjugate base anion can be stabilised by resonance.

Phenol, for example, is a stronger acid than cyclohexanol because its conjugate base is much more stable than cyclohexanol's conjugate base. The phenol conjugate base has increased stability because this anion can delocalize the negative charge throughout the ring via resonance, effectively stabilizing it.

Because cyclohexanol's conjugate base lacks resonance structures to stabilise the charge, it is less stable.

The pKa of phenol is around 9, while the pKa of cyclohexanol is around 15. This means that the acidity of phenol is around 3 times greater than that of cyclohexanol.

The structures of both molecules are shown in the green box. Phenol has a single carbon atom in its structure, while cyclohexanol has six.

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how much heat (in joules) is needed to increase the temperature of a 2.75 mol sample of solid iron from 26.20°c to 44.50°c? the specific heat capacity of solid iron is 0.444 j/g • k.

Answers

The heat (in joules) is needed to increase the temperature of the  2.75 mol sample of the solid iron from 26.20 °C to 44.50° C is 1251.2 J.

The mole of the iron = 2.75 mol

The molar mass of the iron = 56 g/mol

The mass of the iron = moles × molar mass

                                    = 2.75 × 56

                                    = 154 g

The initial temperature = 26.20 °C

The final temperature = 44.50 °C

The specific heat of iron = 0.444 J/g°C

The specific heat expression is as follows :

q = mc ΔT

q = 154 × 0.444 × ( 44.50 - 26.20 )

q = 1251.2 J

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What is an atomic number easy definition?

Answers

A chemical element's atomic number is its position in the periodic table of elements, which places the elements in ascending order of the amount of protons in their nuclei.

What is an atom, briefly?

A chemical element is uniquely defined by its atoms, which are tiny pieces of substance.An atom is made up of a core nucleus and one or even more electrons with negative charges that orbit it.The positively charged, comparatively hefty protons and neutrons that make up the nucleus may be present.

How come atomic number matters?

The atomic number, which is always equivalent to the number or electrons orbiting a nucleus, is the quantity of protons in a core As a result, the same element's atoms are those that share the same amount of protons, or the atomic number.

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certain researchers have published peer-reviewed reports that use of zinc lozenges reduces the length and severity of cold symptoms. what is one reason why some scientists are still skeptical about the merits of using zinc lozenges during a cold?

Answers

Because there may be other factors like immune system behind faster recovery from cold which my not be related to use of zinc lozenges.

Other factors, such as stress levels or immune system variances, could have contributed to the faster recovery of the zinc lozenge users. Although studies on zinc supplements have been examined and published, there is no absolute proof that zinc supplements have a positive impact on the duration and intensity of cold symptoms. This is due to the fact that a variety of factors, including stress or relaxation-inducing situations, eating, immune system variations, and sleep quality, among others, can have the same effect. Some experts may still be dubious about the effectiveness of utilising zinc lozenges to cure a cold due to the enormous number of variables that can affect the length and intensity of symptoms.

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a)berylium b)sodium c)neon d)oxygen e)selenium

Answers

Answer:

a) Beryllium: [He] 2s2

b) Sodium: [Ne] 3s1

c) Neon: [He] 2s2 2p6

d) Oxygen: [He] 2s2 2p4

e) Selenium: [Ar] 3d10 4s2 4p4

Explanation:

As the number of bonds between two carbon atoms increases (i.e.goes from a single toa double bond perhaps), which one of the following DECREASES?a.) the number of electrons between two carbon atomsb.) bond energyc.) bond lengthd.) all of thesee.) none of these

Answers

When number of bonds means single, double , triple between carbon atoms increases the bond length decreases. Hence, option C is correct.

The distance between the centers of two covalently bonded atoms is defined as the bond length. The length of the bond is obtained by the number of bonded electrons i.e., the bond order. The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length or it can be said that bond order is inversely proportional to the bond length.

Generally, the length of the bond between two atoms is approximately equal to the sum of the covalent radii of the two atoms. Therefore, bond length between to carbon atoms increases in the following order: triple bond < double bond < single bond.

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rate of diffusion of methane to co2

Answers

The rate of diffusion of methane (CH4) to carbon dioxide (CO2) depends on various factors such as temperature, pressure, and concentration difference between the two gases.

In general, the rate of diffusion is proportional to the concentration gradient and the diffusion coefficient, which is a measure of the ability of a gas to diffuse through another gas. At a given temperature and pressure, the diffusion coefficient for methane is typically lower than that for carbon dioxide, meaning that methane diffuses more slowly than carbon dioxide.

Additionally, the rate of diffusion may also be influenced by other factors such as the presence of other gases or surfaces in the environment. For example, in the presence of an obstacle or a surface that impedes the diffusion of the gas, the rate of diffusion will be lower.

To determine the precise rate of diffusion of methane to carbon dioxide, it is necessary to perform experiments or simulations under controlled conditions, taking into account all relevant factors that may affect the diffusion process.

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suppose 65.0 j of heat are added to a 105 g piece of aluminum at 22.0 ∘c.

Answers

Given the heat added (Q) and the mass (m) of the aluminum piece, we can calculate the change in temperature (ΔT) using the equation:

ΔT = Q / (c * m)

where c is the specific heat capacity of aluminum, which is approximately 0.90 J/g°C.

Plugging in the values:

ΔT = 65.0 J / (0.90 J/g°C * 105 g) = 65.0 J / 95.5 J/°C = 0.68°C

So the temperature of the aluminum piece would increase by 0.68°C to 22.68°C

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What is the name of the compound NO2?
Responses
A nitrous oxidenitrous oxide
B nitrogen dioxide

Answers

The name of the compound NO₂ is nitrogen dioxide. Therefore, option B is correct.

What is compound ?

A compound is a substance composed of two or more distinct chemical elements combined in a predetermined ratio. When the elements combine, they react and form chemical bonds that are difficult to break. These bonds form as a result of atoms sharing or exchanging electrons.

The compound NO₂ is a compound because the nitrogen dioxide consist of two atoms that are one nitrogen and two oxygen atom therefore, it is called as nitrogen dioxide.

Thus, option B is correct.

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what other configuration information does it provide? name two.

Answers

An IP address provides information about the network location and host ID.

An IP address is a numerical label assigned to each device connected to the internet or a local network. It is used to identify and locate devices on the network so that data can be transmitted between them.

In addition to providing information about the network location and host ID, an IP address also provides information about the network class and the subnet mask.

The network class of an IP address can be determined based on its first few bits. The different classes of IP addresses (A, B, C, D, and E) are used to define different ranges of IP addresses and are used to route data on the internet.

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CAN SOMEONE HELP I WILL GIVE BRAINLIST IT'S DUE TODAY :(A group of students was surveyed in a middle school class. They were asked how many hours they work on math homework each week. The results from the survey were recorded.Number of Hours Total Number of Students0 11 82 23 54 95 76 3Determine the probability that a student studied for exactly 1 hour. Round to the nearest hundredth. 0.03 0.23 0.30 0.77The baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies. If P(chocolate chip) = 0.25, interpret the likelihood of randomly selecting a chocolate chip cookie from the batch. Equally likely and unlikely Likely Unlikely This value is not possible to represent probability of a chance event.Three softball players discussed their batting averages after a game.ProbabilityPlayer 1 seven eleventhsPlayer 2 six ninthsPlayer 3 five seventhsCompare the probabilities and interpret the likelihood. Which statement is true? Player 1 is more likely to hit the ball than Player 2 because P(Player 1) > P(Player 2) Player 2 is more likely to hit the ball than Player 3 because P(Player 2) > P(Player 3) Player 1 is more likely to hit the ball than Player 3 because P(Player 1) > P(Player 3) Player 3 is more likely to hit the ball than Player 2 because P(Player 3) > P(Player 2)Joseph has a bag filled with 3 red, 3 green, 15 yellow, and 9 purple marbles. Determine P(not red) when choosing one marble from the bag. 10% 30% 50% 90%A student randomly draws a card from a standard deck of 52 cards. He records the type of card drawn and places it back in the deck. This is repeated 20 times. The table below shows the frequency of each outcome.Outcome FrequencyHeart 7Spade 3Club 6Diamond 4Determine the experimental probability of drawing a spade. 0.15 0.25 0.35 0.50A spinner with repeated colors numbered from 1 to 8 is shown. Sections 1 and 8 are purple. Sections 2 and 3 are yellow. Sections 4, 5, and 6 are blue. Section 7 is red.Spinner divided evenly into eight sections with three colored blue, one red, two purple, and two yellow.Determine the theoretical probability of the spinner not landing on blue, P(not blue). 0.375 0.625 0.750 0.875A group of students was surveyed in a middle school class. They were asked how many hours they work on math homework each week. The results from the survey were recorded.Number of Hours Total Number of Students0 11 82 23 54 95 76 3Determine the probability that a student studied for exactly 1 hour. Round to the nearest hundredth. 0.03 0.23 0.30 0.77A spinner with repeated colors numbered from 1 to 8 is shown. Sections 1 and 8 are purple. Sections 2 and 3 are yellow. Sections 4, 5, and 6 are blue. Section 7 is orange.A spinner divided into eight equal colored sections, with one orange, two purple, two yellow, and three blue.Which statement about probability is true? The probability of landing on orange is greater than the probability of landing on purple. The probability of landing on yellow is less than the probability of landing on blue. The probability of landing on orange is equal to the probability of landing on yellow. The probability of landing on purple is equal to the probability of landing on blue.List the sample space for rolling a fair eight-sided die. S = {1} S = {8} S = {1, 2, 3, 4, 5, 6} S = {1, 2, 3, 4, 5, 6, 7, 8}There are 10 brown, 10 black, 10 green, and 10 gold marbles in bag. A student pulled a marble, recorded the color, and placed the marble back in the bag. The table below lists the frequency of each color pulled during the experiment after 40 trials.Outcome FrequencyBrown 13Black 9Green 7Gold 11 Likely Unlikely Equally likely and unlikely This value is not possible to represent probability of a chance eventWhich event will have a sample space of S = {h, t}? Flipping a fair, two-sided coin Rolling a six-sided die Spinning a spinner with three sections Choosing a tile from a pair of tiles, one with the letter A and one with the letter Bulia had a bag filled with gumballs. There were 1 lemon-lime, 2 watermelon, and 3 grape gumballs. What is the correct sample space for the gumballs in her bag? Sample space = 1, 2, 3 Sample space = 1, 2, 3, 4, 5, 6 Sample space = lemon-lime, watermelon, grape Sample space = lemon-lime, watermelon, watermelon, grape, grape, grapeSandy used a virtual coin toss app to show the results of flipping a coin 50 times, 400 times, and 2,000 times. Explain what most likely happened in Sandy's experiment. Sandy's experimental probability was closest to the theoretical probability in the experiment with 2,000 flips. Sandy's experimental probability was closest to the theoretical probability in the experiment with 400 flips. Sandy's experimental probability was closest to the theoretical probability in the experiment with 50 flips. Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments. 8. A statistician tells a coach that his team has a 32% chance of making it to the World Series. Which of these terms best describes their probability of makingit?O A. CertainOB.UnlikelyO C. LikelyOD. Impossible is constructed so MP = and PN = y.M1KDT4OComplete part A of the proof.5Part A: Prove a = c.xPBelow is the proof of the Pythagorean theorem, that a + = c. The proof is divided intothree parts, where the title of each part indicates its main purpose.StatementZNOMZOMNCAMNO AMOPPick ratio va = c.xShow the steps.lZOPMPMOy[Show the steps.Part B: Prove 6 = C. Yb#NReasonAll right angles are congruent.Part C: Prove a + b = cPick reason Pick criterion Lengths of corresponding pairs of sides of similar triangleshave equal ratios. (3)similarityMultiply both sides by a 2. (4)21Stuck? Review related articles/videos or use a hint.Report a problem explain the title. what does foer mean by saying zuckerberg is at war with free will? what evidence does foer use to support this, and how valid do you find that evidence? Determine the independent and dependent variable from the following situation. Flora was given 10 pencils at the beginning of the school year. Every week she receives 2 more pencils. what is the independent variable and what is the independent variable. when lady gaga released her album "born this way" and consumer response overwhelmed amazons servers, what aspect of the marketing process was involved? what problem does government control of prices create for economists attempting to measure a countrys gdp Which value is incorrect? 1, 2, 4, 6, 42, 21, 14, or 7? Sergeant Carlton is paid $1856.40 per month as a solider in the Australian Army. What is his equivalent weekly rate of pay? which countrys prime minister unexpectedly announced that she will resign within weeks? what orientation of the dipole has the greatest electric potential energy? FILL IN THE BLANK. ____ is the guideline for research studies that states that benefits and costs must be distributed equally among participants. A seven-sided number cube with sides numbered 1, 2, 3, 4, 5, 6, 7 is rolled. What is the probability that a 4 or an odd number is rolled?. create a pedigree showing the occurrence of nf1 in kais family. include all roman and arabic numerals. acquainted with the night poem What seems to be the speaker hope in the fourth stanza English County At One End Of The Thames Crossword Clue The sink-float method is often used to identify the type of glass material found at crime scenes by determining its density. Several different types of glass of known density are placed into solutions of varying densities. Determine whether each glass piece will sink, float, or do neither when immersed in the given solution. Which activity would be within the field of biology? O A. Measuring the rate of squirrel births in a woodland habitat O B. Measuring the amount of energy used by a building OC. Measuring the growth of a bank account OD. Measuring the size of a star Julie goes shopping. Complete the following table to complete his shopping bill. What is the term for a set of actions carried out on inputs?thank you