if you start with 5.5 grams of sodium fluoride how many grams of magnesium fluoride will be produced

Answers

Answer 1

From 5.5 grammes of sodium fluoride, 4.1 grammes of magnesium fluoride will be created. The inorganic substance MgF2 stands for magnesium fluoride.

It naturally occurs as the rare mineral sellaite and is a white crystalline salt that is transparent over a broad range of wavelengths and has commercial use in optics used in space telescopes. With the formula NaF, sodium fluoride (NaF) is an inorganic substance. It is utilised in minute quantities in toothpaste, metallurgy, and as a flux in addition to fluoridating drinking water. It is a white or colourless substance that easily dissolves in water. Pharmaceutical manufacturers frequently use it as a source of fluoride. Mass in grammes is equal to 0.06548 times 62.301 grammes of MgF2.

= 0.06548 /62.301 = 4.1grams

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Related Questions

the half life of the isotope of uranium of mass number 234 grams is 2.5 * 10^5 years . how long after isolation of a sample of this isotope will only one sixth of the original mass be left

Answers

AThe half-life of an isotope is the amount of time it takes for half of the atoms in a sample to decay. If the half-life of a sample of uranium-234 is 2.5 * 10^5 years, it means that after 2.5 * 10^5 years, half of the atoms in the sample will have decayed.

If you want to know how long it will take for only one sixth of the original mass to be left, you can use the following formula:

t = (half-life) * log(2) / log(1/6)

Plugging in the values, we get:

t = (2.5 * 10^5 years) * log(2) / log(1/6)

This simplifies to:

t = 3.7 * 10^5 years

So it will take approximately 3.7 * 10^5 years for only one sixth of the original mass to be left.nswer:

Consider the following intermediate chemical equations. 3 equations. 1: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas Delta H 1 equals negative 393.5 kilojoules. 2: 2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas Delta H 2 equals negative 566.0 kilojoules. 3: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas delta H 3 equals 483.6 kilojoules. The overall chemical equation is Upper C (s) plus upper H subscript 2 upper O (g) right arrow upper C upper o (g) plus upper H subscript 2 (g).. To calculate the final enthalpy of the overall chemical equation, which step must occur?

Answers

The final enthalpy of the overall chemical equation is -475.9KJ. and 2nd step must occur to calculate the final enthalpy.

what is enthalpy?

Enthalpy depends only on the system's composition, temperature, and pressure; it is unaffected by the system's history. It is a quality or state function that resembles energy and has energy-like properties (and is thus measured in units of joules or ergs).

1st equation

C(s) + O₂ → CO₂ ΔH₁ = - 393.5KJ

2nd equation

CO + O₂ → 2CO₂ ΔH₂ = -566.0KJ

3rd equation

2H₂O → 2H₂ + O₂ ΔH₃ = 483.6KJ

Overall chemical equation is

C(s) + H₂ + O→ CO(g) + H₂(g)

The overall chemical equation's final enthalpy is

ΔH = ΔH₁ + ΔH₂ + ΔH₃

ΔH =  - 393.5 -566.0 + 483.6

ΔH = -959.5 + 475.9

ΔH = -475.9KJ.

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reasons why large quantities of electricity is used for down's cell​

Answers

1.High energy demands: Down's cells require a large amount of energy to function effectively. The process of creating and maintaining the cells requires significant energy inputs to power equipment, lighting, heating, and cooling systems.

2.Manufacturing processes: Many of the processes involved in creating and maintaining Down's cells are energy-intensive. This includes cell replication, gene manipulation, and tissue culture.

3.Complex equipment: The equipment required for Down's cell research and production is often complex and requires significant energy inputs to operate. This includes centrifuges, microscopes, and other specialized equipment used in the lab.

4.Climate control: Down's cells must be kept at specific temperatures and humidity levels to maintain their integrity. This requires the use of energy-intensive climate control systems to maintain optimal conditions.

5.Data storage and processing: With the growing amount of data generated by Down's cell research, large quantities of electricity are also needed to store and process the data.

6.Extensive research and development: Down's cells are a relatively new area of research, which means that large amounts of electricity are used to power experimentation and the testing of new techniques and methods.

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Explain the relationship between an element's row number in the periodic table and the highest principal quantum number in the element's electron configuration. How does this relationship differ for main-group elements, transition elements, and inner transition elements

Answers

The row number in the periodic table corresponds to the highest principal quantum number (n) in the element's electron configuration, also known as the element's valence shell.

Difference between relationship of main-group elements, transition elements, and inner transition elements.

For main-group elements, the highest principal quantum number increases from n = 2 in the first row to n = 3 in the second row and n = 4 in the third row. This means that main-group elements in the first row have their valence electrons in the 2nd energy level (n=2), elements in the second row have their valence electrons in the 3rd energy level (n=3) and elements in the third row have their valence electrons in the 4th energy level (n=4).

Transition elements have electron configurations that deviate from this pattern, they have electrons in higher energy level (n>3) but these electrons are not in the valence shell. They have a different valence electron configuration which allows them to exhibit multiple oxidation states, and also they have a d-block in their electron configuration

Inner transition elements also deviate from this pattern, they also have electrons in higher energy level (n>3) but these electrons are not in the valence shell. They have a different valence electron configuration which allows them to exhibit multiple oxidation states, and also they have a f-block in their electron configuration.

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Draw the stracture of 2-bromo-4-chloro-3, 3-dimethylhex-1-ene​

Answers

answer :

this is the structure if you want it

Why do different substances have different properties?

Answers

Different substances have different properties because of the differences in their atomic and molecular structure, bonding types, and strength of their chemical bonds. These differences can be due to the number of atoms, the arrangement of atoms, and the types of electrons involved in the bonding.

The properties of elements and compounds are determined by the types and arrangements of the atoms that make up the substance. For example, water (H2O) and hydrogen peroxide (H2O2) have different properties due to their different molecular structures. Water is made up of two hydrogen atoms and one oxygen atom, while hydrogen peroxide is made up of two hydrogen atoms and two oxygen atoms. may have different characteristics. The strength of chemical bonds between atoms or molecules can be affected by the number and type of electrons involved in the bond. Because of this, some substances are more stable than others and have higher melting and boiling points.

In addition, some properties are also affected by the physical state of the material, such as solubility, density, and conductivity. These properties are determined by the strength of the intermolecular forces between the particles of the substance.

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The extended structure of sodium chloride (NaCl) is shown.


Which of the following describes the configuration of Layer 4 of the sodium chloride crystal?

OPTIONS
A
It will be identical in all of its characteristics to Layer 1.

B

It will contain 4 atoms of chlorine and 5 atoms of sodium.

C

It will have chlorine atoms in all four of its corners.


D
It will have sodium that are bonded only to other sodium atoms.

Answers

Sodium chloride crystal will contain 4 atoms of chlorine and 5 atoms of sodium. Therefore, option B is correct.

What is sodium chloride?

In sodium chloride, each ion is usually surrounded by 6 ions of the opposite charge. The surrounding ions are positioned at the vertices of a regular octahedron.

In the language of close-packing, the larger chloride ions are arranged in a cubic array whereas the smaller sodium ions fill all the cubic gaps between them.

The basic structure is commonly known as the halite or rock-salt crystal structure. It can be represented as a face-centered cubic lattice with a two-atom basis or as two face centered cubic lattices. The one atom is located at lattice point, and the second atom is located halfway between lattice points along edge of the fcc unit cell.

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The rate of effusion of a particular gas was measured and found to be 21.0 mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 47.0 mL/min. What is the molar mass of the unknown gas

Answers

the particular gas effusion was 21.0. and the methane effusion rate is 47.0 The molar mass of the unknown gas is approximately 28.6 g/mol

The process through which a gas manages to escape through with a small hole or highly permeable barrier is known as effusion. A gas's rate of effusion is inversely proportional to its molar mass squared. The following equation describes this relationship: rate1 / rate2 = (sqrt(molar mass2) / sqrt(molar mass1)). where rate1 and rate2 are the rates of effusion of the two gases and molar mass1 and molar mass2 are the molar masses of the two gases.Given the rate of effusion of the unknown gas is 21.0 mL/min, and the rate of effusion of pure methane (CH4) is 47.0 mL/min, we can use the above equation to find the molar mass of the unknown gas:

(21.0 mL/min) / (47.0 mL/min) = sqrt(molar mass unknown) / sqrt(16.04 g/mol)

Squaring both sides of the equation, we get:

(21.0 mL/min)^2 / (47.0 mL/min)^2 = (molar mass unknown) / (16.04 g/mol)

Solving for molar mass unknown we get:

molar mass unknown = (16.04 g/mol) * (21.0 mL/min)^2 / (47.0 mL/min)^2

The molar mass of the unknown gas is approximately 28.6 g/mol

Please note that the above calculation is based on the assumption that the temperature and pressure are the same for both gases and that the gases are ideal

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A 5.05 g sample of quartz (SiO 2) contains 2.36 g of silicon. What are the percentages of silicon and oxygen in quartz

Answers

In quartz, silicon has a mass percent of 46.7% while oxygen has a mass percent of 53.3%.

Given the total mass of a sample of quartz (SiO2) (m1) = 5.05g

Mass of silicon (m2) = 2.36g

The percent composition of an element in a chemical compound is referred to as mass percent. Mass percent may be expressed as follows:

mass percent  = mass of element/mass of sample x 100

The percent mass of silicon (p1)  =  2.36/5.05 x100 = 46.7%

The substance was made of silicon and oxygen.

Thus, 100% Quartz =%Silicon +%Oxygen can be used to express the mass percentage of quartz.

100% Quartz = 46.7% + % Oxygen

% Oxygen = 53.3%

Hence the percentages of silicon and oxygen in quartz are 46.7% and 53.3%.

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Calculate the pH of each of the following solutions of a strong acid in water.
(a) 0.16 M HCl
(b) 4.4 M HClO4
(c) 2.3???10?11 M HI

Answers

The pH of each of the following solutions of a strong acid in water for (a) 0.16 M HCl is 0.78, (b) 4.4 M HClO4 is 3.35, (c) 2.31011 M HI is 10.64.

A strong acid is an acid that is completely ionized in water. Therefore, the pH of a solution of a strong acid in water can be calculated using the following formula:

pH = -log[H+]

(a) 0.16 M HCl:

= [H+]

= 0.16 M

pH

= -log(0.16)

= -(-0.78)

= 0.78

(b) 4.4 M HClO4:

[H+]

= 4.4 M

pH

= -log(4.4)

= -(0.35)

= 3.35

(c) 2.3 x 10^-11 M HI:

[H+]

= 2.3 x 10^-11 M

pH

= -log(2.3 x 10^-11)

= -(-10.64)

= 10.64

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What do Nitrogen, Oxygen, and Fluorine have in common, with regards to their electronegativity and position in the periodic table

Answers

The elements that are nitrogen, oxygen and fluorine all of them exist as diatomic gases at room temperature.

There are total seven diatomic elements that are written as follows: hydrogen (H), nitrogen (N), oxygen (O), fluorine (F), chlorine (Cl), bromine (Br), and iodine (I). The formation of diatomic gases is done by making up two atoms of the same gas. For example, the formula for nitrogen gas is N2, the formula for oxygen gas is O2 and the formula for Fluorine gas is F2. The word diatomic has other synonym which is known as heteronuclear. The position of all these three elements in the periodic table is different so their electronegativities, the only common factor is that they exist as a gas.

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Is meter stick used in sewing?

Answers

Measuring fabric is one purpose for this wooden metric and meter stick that is perfect for many different applications.

Often employed in the construction business, a meterstick, metrestick, as well as yardstick refers to a straightedge or even a foldable ruler was using to measure length. They were frequently built of plastic or wood, with metal as well as plastic joints which enable folding.

A sewing or seam gauge would be a compact but helpful instrument for gauging tiny distances. The spaces needed for buttonholes as well as buttonhole spacing can also be measured using the sewing gauge, along with hemlines, tucks, as well as pleats.

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N2+ 3H2= 2NH3+ energy Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.

Answers

Efficiency and safety are important criteria for the design of ammonia production processes, as they consume less energy and reliably produce large amounts of ammonia with minimal risk of accidents.

What are Design Criteria?

Design criteria are specific characteristics or requirements that a design must meet in order to be successful. They provide clear and measurable criteria for evaluating designs, ensuring that the final product meets the needs and expectations of customers or users. Design criteria include not only technical specifications such as size, weight and materials, but also performance requirements such as safety, efficiency and durability. It can also include cost-related criteria such as manufacturing cost, ease of maintenance, and environmental aspects. The process of identifying and defining design criteria is an important step in the design process as it helps ensure that the final product meets user needs and is fit for purpose. This is important because as much of the reactants (nitrogen and hydrogen) as possible are converted to ammonia, thereby maximizing the yield of the process. This is important to make the process economical and produce large amounts of ammonia.

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what is the magnetic field due to the wire at the location of the electron?

Answers

The trick with this type of problem is that they usually don't tell you anything because they don't seem to have enough information. But the key is in the phrase "parallel to the wire".

A charged particle in a field should normally bend. If not, there must be some other force at work that balances the magnetic force. In this case it is the electron attraction.

Therefore, the magnetic force on the electrons must be "upwards" (i.e., the electrons are supposed to be downwards, hence towards the wire). Also, its size must be equal to mg of electrons (its mass is easy to find).

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What are the two factors that affect the arrangement of particles in a substance?

Answers

The two factors that affect the arrangement of particles in a substance are kinetic energies and intermolecular forces.

In chemistry, all the substances are composed of tiny particles which are in constant motion.

The substance which is made up of atoms, ions or molecules, all the particles possess kinetic energy and keep moving in all direction. On the other hand, intermolecular forces are also present in a substance which keeps the particles together within their boundaries and doesn't let them go far away. In this way substances maintain their shape, arrangement and properties.

In sum, two factors play a crucial role in maintaining the properties of a substance: Kinetic energy and intermolecular forces.

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A 1. 0108 g sample of an unknown nonelectrolyte is dissolved in 10. 0090 g of benzophenone and produces a solution that freezes at 35. 8 C. If the pure benzophenone melted at 48. 1 C, what is the molecular weight of the unknown compound?

Answers

The molecular weight of the unknown compound is 80.864g.

Give a definition of freezing point depression.

Only the solute's concentration affects freezing point depression; the solute's mass or chemical composition have no bearing. When it's cold outside, salt is often used to prevent ice from forming on roads by lowering the freezing point of water.

Depression in freezing point is Kb x m

T(f) - T  = Kb x  m

48.1 - 35.8 =  9.8 x m

m = 1.255

m = moles of solute x 1000/mass of solvent

moles of solute x 1000 / 10.0090  = 1.255

moles of solute = 0.0125

moles = mass / molar mass

1.0108  / molar mass  = 0.0125

molar mass =  1.0108 / 0.0125

molar mass = 80.864

so the molecular weight is 80.864g.

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2. Explain the relationship between the key terms in
each of the following pairs.
a. direct pressure and indirect pressure
b. goal and action plan

Answers

If someone who look up to does anything that makes you want to do something, this is known as direct pressure directly from the other person's mouth. The plan you use to accomplish the goal it your activity.

Describe pressure.

The Standard unit for pressures seems to be the pascal (Pa), which is equal to one newton / square meter (N/m2) of pressure is defined of surface. An object's pressure is inversely related to its force and proportional to both

Why does pressure exist?

Pressure is created by molecules moving quickly and crashing into the container's walls. The quantity and intensity of molecular collisions in a given region determine the pressure there.

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Can you describe , using full sentence , a car trip : o include distance , speed ,velocity and acceleration

Answers

Answer: Distance : The length of the space between two points.

Speed:The rate at which someone or something moves or operates or is able to move or operate.

Velocity: Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.

Accerelation: Acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

Explanation: Hope it helps!

A binary covalent bond exists between

A. Any element

B. 2 nonmetals

C. 1met and 1 nonmetal

D. 2 metals

Answers

A binary covalent bond exists between 2 nonmetals.

These compounds are termed similarly to binary ionic compounds even though they don't contain ions.

These guidelines apply to the nomenclature of binary covalent compounds:

The complete name of the first element in the formula is given first.

The name of the second element refers to it as an anion.

Prefixes are employed to indicate the number of atoms in a compound. The prefix mono- is dropped if the first element only has one atom.

For instance, carbon monoxide is the name given to CO rather than monocarbon monoxide.

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Which of the following is the net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid? (A) NaF (aq) + HCI (aq) → Naci (aq) + HF (aq) (B) Na+ (aq) + F- (aq) + H+ (aq) + CI+ (aq) → Na+ (aq) + Cl - (aq) + HF (aq) (C) Na+ (aq) + CI+ (aq) → NaCl (aq) (D) F- (aq) + H+ (aq) → HF (aq)

Answers

The net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid is B. Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq)

This is the net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid. The balanced equation for this reaction is NaF (aq) + HCl (aq) → NaCl (aq) +HF (aq).

The net ionic equation is derived by canceling out the spectator ions, which are ions that don't participate in the chemical reaction. In this case, Na+ and Cl- are spectator ions, which means that they don't participate in the reaction and are present in the same form on both sides of the equation. Therefore, they are cancelled out, leaving the net ionic equation Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq).

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How many gram i hydrogen ga (H2) are in 2600 ml comtainer at 35 degree celiu and a preure of 165 mmHg

Answers

108gm of hydrogen gas is present in2600ml container at 35-degree Celsius and at pressure of 165mm Hg.

Given data:

water = 2600ml

temp = 35°C & 95k

pressure = 165mm Hg & 0.162atm

From given information we apply ideal das equation to get moles.

PV = nRT

0.162atm * 2600ml = n 0.0821 * 95k

n = 54

Now we know 1 mole of hydrogen contain 2.016gm hydrogen.

In 54 moles we have 108gm hydrogen.

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In the molecules below, areas that have a partial negative charge are pink and areas that have a partial positive charge are blue.


The attractive force between these two molecules has most likely been produced by
covalent bonds.
dipole-dipole interactions.
dipole-induced dipole interactions.
London dispersion forces.

Answers

The attractive force (intermolecular force) between these two molecules has most likely been produced by dipole-dipole interactions.

The correct option is B.

What are intermolecular forces?

Intermolecular forces are forces of attraction or repulsion that act between atoms and other kinds of nearby particles, such as atoms or ions, to mediate interactions between molecules.

Some intermolecular forces are:

covalent bonds.dipole-dipole interactions.dipole-induced dipole interactions.London dispersion forces.

Considering the given molecules in the diagram:

Each molecule is made up of two distinct components, and as a result, each molecule has a constant bond dipole.

The attractive forces are dipole-dipole attractions because the dipoles do not cancel. The dipole-dipole attractions are substantially stronger than the dipole-induced dipole and London dispersion forces.

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The empirical formula for the compound having the formula H₂C₂O4 is

C₂O₂H₂

COH

COH ₂

CO₂H

C₂H₂​

Answers

Answer:

CO₂H

Explanation:

The empirical formula gives the smallest whole number ratio of atoms of each element in a compound.

The ratio of hydrogen, carbon and oxygen in H₂C₂O₄ is:

H : C : O

2 : 2 : 4

They have a common factor of 2, so we can divide the atoms of each element by 2:

H : C : O

1 : 1 : 2

This gives us HCO₂ or CO₂H

The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely

Answers

The heat of vaporization for water is 40.7 kJ/mol. the heat energy must 150.0 g of water absorb to boil away completely is 6106 kJ.

The expression is given as :

q = m ΔH

where ,

q is heat energy

m is the mass

ΔH is the heat of the vaporization.

q = heat = ?

m = mass  = 150 g

ΔH = heat of vaporization = 40.7 kJ/mol

q = 150 × 40.7

q = 6106 kJ

Thus , if the heat of vaporization is 40.7 kJ/mol ,the heat energy required for 150 g of water absorb to boil away completely is 6106 kJ.

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From the information on the table, determine the Mass of
the alloy, Volume of alloy, then the density of the alloy. Be
sure to follow the rules of significant figures in calculations.

Mass of Alloy _____g Bolume of the alloy ______mL. Density of the alloy: ____g/mL.

Answers

Answer:

mass of alloy=165.36g

volume of alloy=21.2ml

density of alloy=7.8g/ml

I need help plssss:(

the question is in the photo

Answers

The balanced chemical equation for the combustion of methane is:

CH4(g) + 2 O2(g) -> CO2(g) + 2 H2O(l)

The standard enthalpy of formation (ΔHf) for methane is -74.8 kJ/mol, for carbon dioxide it is -393.5 kJ/mol, and for water it is -285.8 kJ/mol. The standard enthalpy of formation is the change in enthalpy when one mole of a compound is formed from its elements in their standard states.

To calculate the standard enthalpy of reaction (ΔHrxn), we need to use the equation:

ΔHrxn = ΣΔHf (products) - ΣΔHf (reactants)

Plugging in the values for the reactants and products, we get:

ΔHrxn = (2 * -285.8 kJ/mol) + (-393.5 kJ/mol) - (-74.8 kJ/mol)

ΔHrxn = -890.2 kJ/mol

This reaction is exothermic because the value of ΔHrxn is negative. Exothermic reactions release heat, while endothermic reactions absorb heat.

what are the two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances?

Answers

Dimensional evaluation makes use of conversion elements to use the unit in an quantity into an equal amount expressed with a exclusive unit.

For example, a conversion aspect might be used to transform meters to centimeters. Dimensional evaluation (additionally referred to as aspect label approach or unit evaluation) is used to transform from one set of gadgets to another. This approach is used for each simple (ft to inches) and complex (g/cm3 to kg/gallon) conversions and makes use of relationships or conversion elements among exclusive units of gadgets. A conversion ratio (or unit aspect) is a ratio same to one. This ratio includes the names of the gadgets for use withinside the conversion. It may be used for conversions in the English and Metric Systems, in addition to for conversions among the systems. The conversion unit is primarily based totally upon the idea of equal values.

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How can light help us understand atoms?

Answers

Answer: We can calculate the energy levels of an atom

Explanation:

Spectral lines tell us how many different energy levels an atom has, and how far apart those energy levels are spaced.This is possible because spectral lines are the result of an excess (emission lines) or deficiency (absorption lines) of observed photons emitted from certain types of matter. The lines are caused by electrons moving between energy levels within individual atoms. Since each element emits it's own unique spectrum, this means that different types of atoms must have a distinct number of electrons in very particular energy levels.

When bonding, atoms seek to achieve a stable-


A.

noble gas configuration.



B.

halogen gas configuration.



C.

low ionization energy configuration.



D.

high electronegativity configuration

Answers

When bonding, atoms try to achieve a stable noble gas configuration.

Atoms are always trying to achieve stability. In the modern periodic table, noble gases present in the group 18 are the most stable. They have a completely filled outermost or the valence shell, that is, it contains 8 valence electrons in its valence shell.

Due to this stable electronic configuration, they are inert in nature, that is, they do not have a tendency to react by sharing or losing their electrons. When participating in a bonding, atoms try to lose or gain electrons to reach their nearest noble gas configuration and attain stability.

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A second row element has a large jump between its third and fourth ionization energies. What is the element

Answers

Be is the second element with two valence elements When a core electron is eliminated, the energy of ionization increases. From an element's electrical configuration, it is simple to see a significant change in ionization energy.

Electronically, beryllium is configured as 1s2 2s2. The outermost shell of beryllium has two valence electrons, hence the data on ionization energy will show a sharp rise or leap from the second to the third ionization energy due to the elimination of a core electron. Nitrogen has the following electrical configuration: 1s2 2s2 2p3. The outermost shell of nitrogen has five valence electrons, thus when one of them is removed, the ionization energy data for nitrogen will show a sharp rise or leap from the fifth to sixth ionization energy.

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Which evidence best supports the claim that mutations are a source of inheritable genetic variation? ANSWER: Mutations affect protein synthesis which impacts the way traits are expressed.Sickel cell anemia. What type of mutation error has occurred to cause the disorder shown?ANSWER: substitutionExamine the two strands of DNA below. Which kind of mutation occurred?Original strand: AGC GTA CCC TACNew strand: AGC GTA ACC TACANSWER: substitutionMillions of years ago, the ancestors of giraffes had short necks and used to eat leaves from the bushes on the ground. A genetic mutation caused one giraffe's neck to be taller. This long-necked giraffe was able to eat leaves that were higher up on trees. This gave it an advantage as it was able to access more food than other giraffes. Over millions of years, all of the giraffes became long-necked. Which type of environmental factor caused this mutation to be inherited? ANSWER: food availability What is one way that a frameshift mutation could occur? ANSWER: two nucleotides are deleted Use the terms below to describe the information given in the punnet square.A. GenotypeB. PhenotypeD. OffspringC. Allele Find y'' for x + y = 20 SkillsUSA is an organization made up of high-level college entry personnel who use their skills to enable students to enter prestigious colleges.A. TrueB.False On a coordinate plane, a line is drawn from point C to point D. Point C is at (negative 1, 4) and point D is at (2, 0).Point C has the coordinates (1, 4) and point D has the coordinates (2, 0). What is the distance between points C and D?d = StartRoot (x 2 minus x 1) squared + (v 2 minus v 1) squared EndRoot units What are 3 changes you can make to become healthier? an explorer walks 22 km north, then 47 km at 55o south of east. what is her resultant displacement? i need to solve this so can you pls hlp A certain movie is 105 minutes long. It started at 6:15 pm. During the movie, there were two commercial breaks, one lasting 9minutes and one lasting 6 minutes. At what time did the movie finish? In sentence 3 (reproduced below), the writer wants to ensure that the connotation of the underlined word is appropriate to the context of the sentence. Adolescents have unique sleep patterns, and with an early school start, many are doggedly tired, leading to serious health and safety risks. Which of the following versions of the underlined word would best accomplish this goal?.A. resolutelyB. relentlesslyC. chronicallyD. steadily which equation represents the lime that is parallel to y=3 and passes through (-2,-8)? A. x=-2B. x=3C. y=-8D. y=3x -2 HELP!!!!!!!!!!!!!!!Although there has been little scientific research done about the efficacy of essential oils, their use has now become mainstream. Considering this fact, which conclusion is MOST reasonable to assume? A. People tend to accept something if many others do. B. Individual people know more than scientists and companies. C. There is no denying the effectiveness of essential oils. D. The pharmaceutical companies do not want essential oils to be used. Which expression is equal to: 3X434 given that y=15-2x,copy and complete the table below giving the values of y for x=-4,0,4,8,12 What is the contrast between the poet is feeling and her words? A prenatal client who is 6 weeks' gestation calls the clinic to report vaginal bleeding. For what concern will the nurse further assess the client A riot broke out in Chicago when a. George Wallace was nominated for president. b. Hubert Humphrey won the Democratic nomination for president. c. police officers moved in to stop the demonstration of antiwar protesters during the Democratic National Convention. d. Robert Kennedy was assassinated. Please select the best answer from the choices provided A. B. C. D The mass of the Earth is 5.972 x 1024-kg and its orbital radius is an average of 1.496 x 1011 meters. Calculate its linear momentum. (Hint: It takes the Earth 365 days to complete one orbit.) Solve the equation 2^x=1/32x= What are the 4 principles of an effective speech?