Tell how many protons, neutrons, and electrons 1H35Cl
contains.

The major organic product of the reaction conditions shown is the following:

The structure shows the major organic product with all lone pairs of electrons included. No inorganic byproducts are present.

The organic product shown is an alkene, specifically a 1,3-butadiene, which is a molecule made up of two carbon atoms double-bonded together and four hydrogen atoms attached to the carbons. This type of molecule is an important building block for organic synthesis, as it can be used to create polymers, polystyrene, and other materials.

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Electron configurations written down. The energy level (the period) should come first when writing an electron configuration, followed by the subshell that needs to be filled and the superscript.

The energy levels of the electronic orbitals are 1s 2s 2p 3s 3p. Due to the fact that one atom can have numerous electronic orbitals, energy levels are classified as particular quantum numbers: 1s, 2s, 3s, 4s, 3d, 4p, 5s, 4d, 5p 7s 5f 6d 6p 4f 5d 6p. The orbital angular momentum quantum number, indicated by l, can be understood.

Let's list the elements that have changed. The following is anticipated

Every stable electron configuration element gains the maximum D- Te Te +2 2- Po Pot2 +2 se se Hele as well as all other elements. Be Be 12 нд Mg+2 2n+2

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Answer:

65.2 grams

Explanation:

We can first find the moles of AlCl3:

36.2 g AlCl3 / 133.34 g/mol = 0.27 moles AlCl3

Knowing the molar ratio of AlCl3 to Br2 in the reaction, we can calculate the number of moles of Br2 required:

0.27 moles AlCl3 * 3 moles Br2 / 2 moles AlCl3 = 0.405 moles Br2

Finally, we can convert the number of moles to grams:

0.405 moles * 159.808 g/mol = 65.02 g Br2

So, 65.02 grams of Br2 are required to react completely with 36.2 grams of AlCl3.

The chair conformation is obtained by a  flip of the boat conformation.

In this conformation, the cyclohexane ring is bent into a chair-like shape, with alternating bonds in the ring adopting a "up" or "down" orientation.

The chair conformation is a very stable arrangement of bonds in cyclohexane, and it is the most common conformation observed in this type of molecule. The stability of the chair conformation is due to the fact that all of the bond angles in the ring are nearly tetrahedral, which is the preferred arrangement for carbon bonds. The chair conformation is also significant because it represents a compromise between the ring's need to minimize strain and its need to maintain its rigidity.

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Removing the first H+ from H2SeO3(aq) requires less energy that the Removing the second H+, because the second H+ is removed from the Negatively charged species.

Find attached file of explanation of step-wise dissociation of selenous Acid, H2SeO3 (aq).

Reason: H2SeO3 is neutral molecule. Due to high electronegativity of O In O-H bond, it dissociates to release a proton.

But HSeO3-, is a negatively charged species and so, it is difficult to Abstract a proton from this ion. So, the value of Ka2 is so much smaller than the value of Ka1Ka2 is smaller.

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-- The given question is incomplete, did not get the complete question anywhere, so answer the question in general way. --

The bonds between atoms are one place where potential energy is stored of potential energy found in a container full of a chemical substance in liquid form.

A chemical substance is a shape of matter having a steady chemical composition and feature residences. a few references add that chemical substances can't be separated into their constituent elements by way of bodily separation methods, i.e., without breaking chemical bonds.

A chemical substance is a form of count number having a constant chemical composition and characteristic properties. some references upload that chemical substances can not be separated into their constituent factors via physical separation strategies, i.e., without breaking chemical bonds. Chemical materials are factors, compounds, or mixtures: elements are just the one's materials that don't have any others as components. factors in this sense are the constructing blocks of chemical composition.

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The standard molar entropy of N2(g) at 298 K from its rotational constant B= 1.9987 cm-1 is 192.1 J/(K mol).

Entropy is a concept in thermodynamics and information theory that measures the amount of disorder in a system. It is typically represented by the letter S, and has units of joules per kelvin (J/K). Entropy is an important concept because it determines how much energy can be used to do work. In thermodynamics, entropy is related to the amount of energy in a system that is unavailable to do work. In information theory, entropy is related to the amount of information in a system. Entropy is also related to the amount of uncertainty in a system. Entropy increases with disorder and decreases with order. Entropy is a fundamental quantity in physics, and it has been used to explain many physical processes. The increase of entropy over time is known as the Second Law of Thermodynamics, and it has important implications for the universe.

Qrot = (2πh/B[tex])^{3/2}[/tex]

= (2π*6.626×10⁻³⁴ /1.9987×10⁻²[tex])^{3/2}[/tex]

= 3.35×10⁻³⁸

Qvib = (hv/RT[tex])^{1/2}[/tex]

= (6.626×10⁻³⁴ *2359*10²/8.314*298[tex])^{1/2}[/tex]

= 5.21×10⁻¹⁷

Standard molar entropy

= 8.314*ln(3.35×10⁻³⁸/5.21×10⁻¹⁷)

= 192.1 J/(K mol)

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Answer:

Explanation:

one half mole or 76 grams of Iron (II) Sulfate.

There has to be 1.87 g of sucrose to be added to 537 g of water to make a solution with the specified vapor pressure.

Vapor Pressure Sucrose Solution

The vapor pressure of a solution is related to the concentration of solute particles in it. The decrease in vapor pressure, ΔP, is proportional to the molality of solute, m, in the solution: ΔP = -kPm, where k is a constant and P is the vapor pressure of pure water.

Since the vapor pressure of the solution is 0.513 mmHg less than that of pure water, we can write:

17.5 mmHg - 0.513 mmHg = 17.0 mmHg = -kP * m

Rearranging and solving for m, the molality, we have:

m = - ΔP / (kP) = 0.513 mmHg / (17.5 mmHg) = 0.0293 mol/kg.

We can then use the molality to find the amount of solute (sucrose) in grams needed to make the solution:

m = 0.0 293 mol/kg = 0.0 293 mol / (537 g) = 5.47 x 10^-5 mol

Finally, using the molar mass of sucrose, we can find the number of grams of sucrose needed:

5.47 x 10^-5 mol * 342.3 g/mol = 1.87 g.

So, 1.87 g of sucrose must be added to 537 g of water to make a solution with the specified vapor pressure.

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The minimum energy 0 of a photon capable of ejecting electrons from a metal with 0=5.43×1014 s−1 is 3.597 × 10⁻¹⁹ J. The maximum kinetic energy electron of electrons ejected from this metal by light with a wavelength of 245 nm is 6.46 × 10⁻¹⁹ J.

The term kinetic energy is defined as the energy of motion, observable as the movement of an object or subatomic particle.

The formula for the minimum energy required to eject electrons from the metal that has the threshold frequency is;

E = hν

Where;

h is Planck's constant = 6.626 × 10⁻³⁴ J.s

ν is threshold frequency

So,

E = 5.43 × 10¹⁴ × 6.626 × 10⁻³⁴

E = 3.597 × 10⁻¹⁹ J

We can find the energy provided by the light using the Planck-Einstein equation. First, we need its frequency, which can be calculated from the following expression:

c = λ × ν

where,

c is the speed of light (3.00 × 10⁸ m/s)

λ is the wavelength

Then,

Let's call total energy T.

T = h . ν

= 6.63 × 10⁻³⁴ J . s × 1.28 × 10¹⁵ s⁻¹

= 8.49 × 10⁻¹⁹ J

From the total energy provided by the light (T), a part is used to eject the electron (E) and another part goes to the kinetic energy of the electron (K).

T = E + K

K = T - E

= 8.49 × 10⁻¹⁹ J - 2.03 × 10⁻¹⁹ J

= 6.46 × 10⁻¹⁹ J

Thus,  the minimum energy 0 of a photon capable of ejecting electrons from a metal with 0=5.43×1014 s−1 is 3.597 × 10⁻¹⁹ J. The maximum kinetic energy electron of electrons ejected from this metal by light with a wavelength of 245 nm is 6.46 × 10⁻¹⁹ J

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The concentration of hydrogen ions in a solution with a pH of 4 is [tex]1 x 10^-4 M.[/tex]

The pH of a solution is a measure of the acidity or basicity of the solution and is defined as the negative logarithm of the hydrogen ion (H+) concentration in the solution. The pH scale ranges from 0 to 14, with values less than 7 indicating an acidic solution and values greater than 7 indicating a basic solution. A neutral solution has a pH of 7.

To calculate the hydrogen ion concentration (in units of M) from the pH of a solution, the formula [tex][H+] = 10^-pH[/tex] can be used. For example, in a solution with a pH of 4, the hydrogen ion concentration can be calculated as [tex][H+] = 10^-4 = 1 x 10^-4 M[/tex]. This means that in a solution with a pH of 4, there is a concentration of [tex]1 x 10^-4 M[/tex] hydrogen ions present.

It's important to note that the pH of a solution can be used to determine the relative acidity or basicity of a solution, but it cannot be used to determine the actual amount of hydrogen ions or other species present in the solution. To determine the actual concentration of species in a solution, it is necessary to perform a quantitative analysis using techniques such as titration or spectrophotometry.

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Convert the number of atoms to moles. The Avogadro's constant, N, is 6.022 x 10^23 atoms/mole.

So, the number of moles is given by:

(2.64 x 10^24 atoms) / (6.022 x 10^23 atoms/mole) = (2.64 x 10^24 atoms) / 6.022 x 10^23 moles/atom

= 4.4 moles

Therefore, there are 4.4 moles in 2.64 x 10^24 atoms of He.

The smallest piece of stuff that still possesses an element's characteristics is an atom. Protons, neutrons, and electrons are the three different sorts of particles that make them up. The nucleus, or core, of an atom, is made up of protons and neutrons, with electrons revolving around it. What element the atom depends on how many protons are in the nucleus. All matter in the cosmos is made up of molecules, which are created when atoms join together to form bonds. Atoms can also disintegrate into smaller forms of matter or react chemically with other atoms to create new substances. Modern chemistry and physics both depend critically on our understanding of atoms and how they interact with one another.

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Record the value. Also, determine whether the pH stayed the same, became more acidic, or became more alkaline compared to the first test.

Alkaline water has a higher pH level than that of plain tap water. So proponents say that it can neutralize acid in your bloodstream. Some say that alkaline water can help prevent disease, such as cancer and heart disease.

Most fruits and vegetables, soybeans and tofu, and some nuts, seeds, and legumes are alkaline-promoting foods, so they're fair game. Dairy, eggs, meat, most grains, and processed foods, like canned and packaged snacks and convenience foods, fall on the acid side and are not allowed.

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Answer:

Explanation:

The amount of barium chloride used is 8.1 μmol and it was dissolved in a 50 mL flask. To find the concentration, we need to divide the amount of solute by the volume of solution:

Concentration = amount of solute / volume of solution

The volume of solution in liters is:

50 mL = 50 × 10^(-3) L = 0.050 L

So the concentration of the barium chloride solution in μmol/L is:

Concentration = 8.1 μmol / 0.050 L

Concentration = 162 μmol/L

Therefore, the concentration of the chemist's barium chloride solution is 162 μmol/L.

The author does not provide a description of Mirwais's voice in the article. The three quotations from Mirwais suggest that he is determined and passionate about his music.

He states that he wants to "sing for peace" and that he "believes in the power of music to heal." He also expresses his desire to "spread joy and love" through his music.

The author chose Mirwais Najrabi as the subject of his article because he wanted to highlight the story of a young, talented musician who is overcoming adversity to pursue his passion. The choice of Mirwais as the subject suggests that the main purpose of the article is to inspire and encourage others to pursue their dreams and to show the positive impact that music can have on individuals and communities.

The unity of the article is good. Each paragraph develops the main idea of the young singer's story, and the overall message is that music can be a source of hope and inspiration for individuals and communities. The article flows well, and the use of quotations from Mirwais helps to reinforce the main idea and message.

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The answer is "Years". The radioactive decay of Sm-151 (an isotope of samarium) can be modeled by the differential equation dy/dt = -0.0077y, where t is measured in years.

The differential equation dy/dt = -0.0077y models the radioactive decay of Sm-151. This equation shows that the rate of decay is proportional to the amount of Sm-151 present at a given time or points in time. A negative sign indicates that the amount of Sm-151 is decreasing over time.

This equation also shows that the decay rate is 0.0077, which means that when the initial amount of Sm-151 is 100 g, the amount of Sm-151 drops to 99.23 g after one year. This process continues over time and the amount of Sm-151 decreases until it is completely broken down.

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A diluted solution containing a molar ratio of potassium acetate to acetic acid has a pH of 5,46 when a weak acid and its conjugate base are combined.

Acetate/acetic acid is the ratio specified for each section of the question, and its pH value is 4.76 log (acetate/acetic acid).

Acetic acid, a byproduct of fermentation, is responsible for vinegar's characteristic aroma. Water makes around 4-6% of the acetic acid in vinegar.

pH is equal to pka plus log. [acetic acid/acetate]

pH = 4.76 + log (5/1)

pH = 5.46

Acetic acid, sometimes referred to as ethanoic acid, is a colorless, acidic organic molecule having the chemical formula CH3COOH. Vinegar contains  least 4% acetic acid by volume, making it the main component, along with water and other minor components.

Other names for acetic acid, which has the molecular formula CH3COOH, are ethanolic acid, ethylic acid, vinegar acid, and methane carboxylic.

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The correct answer is. D) The number of protons and the number of neutrons are always the same in the neutral atom is false. The number of neutrons in an atom can vary, leading to different isotopes of the same element.

Atomic structure is defined by the number of protons, electrons, and neutrons in an atom. Protons and electrons determine the atomic number and the identity of an element, while neutrons provide additional mass to the atom. The number of protons and electrons in an atom is always equal, giving the atom a neutral charge. However, the number of neutrons in an atom can vary, leading to different isotopes of the same element.

Isotopes of an element have the same number of protons, but different numbers of neutrons. As a result, they have different atomic masses, but the same atomic number. This is why isotopes of the same element have similar chemical properties, but different physical properties. For example, isotopes of carbon, such as carbon-12 and carbon-14, have different numbers of neutrons and thus different atomic masses, but the same number of protons and the same chemical properties.

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The equation for the temperature change of the solution when 15 ml of 0.01 M HCl is mixed with ml of 0.01 M NaOH is:

HCl + NaOH → NaCl + H2O

Where nHCl is the amount of moles of HCl and ΔHCl is the molar heat of reaction of HCl, and nNaOH is the amount of moles of NaOH and ΔNaOH is the molar heat of reaction of NaOH.

The temperature change of a solution is determined by the amount of heat energy it absorbs or releases during a reaction. For example, when a solute dissolves in a solvent, it can cause the temperature of the solution to rise or fall.

This is because the solute absorbs or releases heat energy in order to break the intermolecular forces between the solvent molecules and the solute molecules. Additionally, when two solutions are mixed, their temperatures may change due to endothermic or exothermic reactions.

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The mass of oxygen gas that is consumed by the reaction of 2.0 g of ethanol would be 1.28 grams.

The reaction of ethanol with oxygen to form water and acetic acid is shown in the balanced equation below:

[tex]CH_3CH_2OH + O_2 -- > CH_3COOH + H_2O[/tex]

The mole ratio of ethanol to oxygen is 1:1.

The mole equivalence of 2.0 g of ethanol would be:

Mole = mass/molar mass = 2/46.07 = 0.04 mol

Thus, the mole equivalence of oxygen consumed will also be 0.04 mol.

The mass of 0.04 mol oxygen consumed can be calculated as:

Mass = mole x molar mass = 0.04 x 32 = 1.28 grams

In other words, the amount of oxygen consumed would be 1.28 grams.

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A sample of ground beef contains 18.9% protein and 21.4% fat both by mass. Therefore, 147.5kilocalories are in 125g of the ground beef.

The calorie is an energy unit derived from the now-defunct thermodynamic theory of heat. Two primary meanings of "calorie" are widely used for historical reasons.

Originally, a big calorie, meal calorie, dietary calorie, and kilo calorie was defined as the quantity of heat required to increase the temperature with one kilogram of water through one degrees Centigrade (or one kelvin). The amount of heat required to create the same rise in one gram of water was characterized as a tiny calorie or gram calorie.

Let the required calorie of ground beef be m .

protein in it = .18m

fat in it =  .21m

1 gram of protein gives 4 cals .

1 gram of fat gives 9 cals .

4 x .18m  + 9 x  .21m = 350

m = 147.5kilocalories

Therefore, 147.5kilocalories are in 125g of the ground beef.

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A cation's name, symbol, and charge must be noted in order to determine the ionic compound's formula.The symbols for sodium and oxygen are respectively Na+ and O2.Na2O is the resultant substance.

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Nixon's visit to China prove to the US that A. If you can deal with one communist nation, others will likely join in.

The 37th President of the United States (US) Richard Nixon is known for his resistance to the spread of the ideology of communism, especially that of the Soviet Union and China.

However, when there was a rift between the Soviet Union and China in the mid-1960s, US leaders including Nixon used this moment as an opportunity to overthrow communism.

The rift in relations stems from China's protest which considers Russia to have made a policy of counter-revolutionary diplomacy and reduced the expansion of the influence of communism, especially with the United States.

During a meeting with China in 1960, the Soviet Union reasoned that diplomacy with the US needed to be more fluid to avoid tensions, at a time when the two countries had nuclear weapons.

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Answer: A

Explanation:

The answer is A.

There are 4 carbon atoms in the carbon chain. There is a triple bond between the first 2 carbons.

The fact that there are 4 carbon atoms and a triple bond makes this butyne.

The pH of the solution is 4.58.

pH which denotes "potential of hydrogen", is described as a scale used to specify the acidity or basicity of an aqueous solution.

In order to find the pH of the solution, we need to use the weak base-strong acid equation:

Kb = Kw / Ka = [CH3COO-][H+] / [CH3COOH]\

Ka = [H+][CH3COOH] / [CH3COO-]

[H+] = sqrt(Ka * [CH3COOH]) = √t(1.75x10^-5 * 0.15) = 1.36x10^-5 M

We then  find the concentration of acetate ions from the sodium acetate.

We have 2.05 g of sodium acetate, which is equivalent to 2.05 / (82.03 + (12 + 16 + 1) * 2) = 0.0163 moles.

[CH3COO-] = 0.0163 M

Kb = Kw / Ka = 1.36x10^-5 / 0.0163 = 8.36x10^-10

In conclusion,

pH = pKb + log([CH3COO-] / ([CH3COOH] + [CH3COO-]) = 4.58

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It takes 13.6 moles of carbon to react with 5.44 moles of SO₂.

In chemistry, a limiting reagent is a reactant that exists in a finite amount and finishes reacting first. The limiting reagent is used if the number of moles of each reactant is known.

If the number of moles of each reactant is known, the number of moles of the reactant that has been used up or the limiting reagent must be determined. The limiting reagent is useful as a limiter (benchmark) to determine the moles of the reaction product.

In this question:

5C (s) + 2SO₂(g) → CS₂(l) + 4CO(g)

2 moles SO₂. requires 5 moles of C

5.44 moles of SO₂. ......?

Moles of Carbon = 5.44 mol SO2 X 5 mol C/2mol.

Moles of Carbon = 13.6 mol

So, the mole of carbon is 13.6 mol.

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Reaction which occurs  when aqueous solutions of chromium(II) sulfate and sodium phosphate are combined is that the chemical equation is CrSO₄ + Na₃PO₄[tex]\rightarrow[/tex]Cr₃(PO₄)₂+ Na₂SO₄.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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When water freezes at its typical freezing point, its entropy changes to [tex]-22.08 J/mol K[/tex].

Entropy is a metric for how chaotic or unpredictable a system is. The quantity of energy in a thermodynamic system that is not usable for work is measured using this notion, which is utilised in thermodynamics and statistical mechanics. It is frequently referred to as the system's level of chaos or disorder.The change in entropy of water at its normal freezing point is given by the expression:

ΔS = -ΔH/T

Where ΔH is the enthalpy of fusion of water, which is 6.01 kJ/mol, and T is the freezing point of water, which is 273.15 K.

The change in entropy of water when it freezes at its normal freezing point is:

ΔS = [tex]\frac{-6.01 kJ/mol }{ 273.15 K}[/tex]

ΔS = [tex]-22.08 J/mol K[/tex]

Therefore, The change in entropy of water when it freezes at its normal freezing point is:-22.08J/molK

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Answer:

0.74 moles of hydrogen

Explanation:

f 0.37 mol of oxygen reacts, then the number of moles of hydrogen will also be 0.37 mol. According to the equation, 2 moles of hydrogen are required to react with 1 mole of oxygen, so 2 * 0.37 = 0.74 moles of hydrogen will react with 0.37 mol of oxygen.