Does anyone know how to solve this? (Picture Provided)

[tex]CaCO_{3}[/tex]and HCl reaction chemical equation with physical states balanced [tex]CaCl_{2}[/tex] (q) + Carbon 2 (g) + H atoms Of oxygen = [tex]CaCO_{3}[/tex](s) - 2HCl (aq) (l) Water cannot dissolve calcium carbonate.

How should a chemical equation be written?

Chemical expressions and other characters are used to denote the initial substances, or reactants, which are customarily represented upon that left column of the equation and the final substances, or products, that are traditionally written on the right. From the source to the products, an arrow leads.

How is a chemical equation balanced?

"Inspection," often known as trial and error, is the quickest and most widely applicable technique for balancing chemical equations. This method can be used to effectively balance a chemical equation, as shown below.

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I would say C

Since the nitro group (NO2) contains a positively charged nitrogen atom, it tends to attract electron from the aromatic ring and, therefore, the other group/atom. In the first case, I think piridine (II) makes a stronger bond with water since the nitrogen in the aromatic ring needs its electrons in order to be have a slight negative charge that can interact with the slightly positive charged hydrogen atom in water. If the nitro group is present, it will attract to some extent the electrons of the nitrogen atom in the ring, thus making the H-bond less stronger.

In the second case the hydrogen, which is slightly positive, of the OH group interacts with the oxygen, which is slightly negative, of water. If the nitro group is present, it will attract the electrons of oxygen of the hydroxyl group, therefore making the bond between the oxygen and the hydrogen more polar (which basically means that the bonding electron of hydrogen is even more attracted by the oxygen atom) making the hydrogen atom more positive, which means that the H-bond will be stronger

Therefore, we need to add 173.49 grams of potassium iodide to 2.00 kg of water to prepare a 0.523 m aqueous solution.

Potassium iodide solution is made by dissolving 1 litre of water in 1 gramme of potassium iodide and 1 gramme of hydroxyammonium chloride. Solution of potassium iodide, about 0.2 M: 33 grammes of potassium iodide should be dissolved in 1 litre of water.

We must apply the following formula to get the mass of potassium iodide required to create a 0.523 m aqueous solution:

molarity=moles of solute/liters of solution

First, we must determine the solution's litre volume:

1 kg of water=1000 mL of water

2.00 kg of water = 2000 mL of water

Volume of solution = 2000 mL = 2.00 L

Next, we need to rearrange the formula to solve for the moles of solute:

moles of solute=molarity x liters of solution

moles of solute = 0.523 mol/L x 2.00 L = 1.046 mol

Finally, we can use the molar mass of potassium iodide (166.0028 g/mol) to convert the moles of solute to grams:

mass of potassium iodide = moles of solute x molar mass

mass of potassium iodide = 1.046 mol x 166.0028 g/mol = 173.49 g

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The concentrations of all species in a 0.510 M NaCH₃COO (sodium acetate) solution: [Na+]= 0.510 M , [OH-]= 1.8x10⁻⁵ M , [H₃O+]= 1.8x10⁻⁵ M , [CH₃COO-]= 0.510 M and [CH₃COOH]= 0.510 - (1.8x10⁻⁵) = 0.50982 M.

Concentration is the ability to focus your attention on a single task or thought for a prolonged period of time. It involves being able to ignore distractions and to be able to work through any difficulties or obstacles that may arise. Concentration is an important skill to master in order to achieve success in any endeavor, whether it be academic, professional, or personal. Good concentration can help you to stay focused, organized, and productive. When you are able to concentrate, you can take in the information needed to make better decisions and solve problems. Concentration is a skill that can be developed with practice, such as by setting goals, breaking down tasks into smaller, manageable pieces, and avoiding distractions.

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The new volume of the helium sample would be 2.4 L.

According to the ideal gas law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in kelvins.

At STP (standard temperature and pressure), which is defined as 0°C (273.15 K) and 101.325 kPa, the volume of 2.0 liters of helium gas contains one mole of helium atoms.

To find the new volume of the helium sample when the temperature is increased to 27°C (300.15 K) and the pressure is decreased to 80 kPa, we can use the following equation:

(P1V1)/T1 = (P2V2)/T2

where P1, V1, and T1 are the initial pressure, volume, and temperature, respectively, and P2, V2, and T2 are the final pressure, volume, and temperature, respectively.

Plugging in the values, we get:

(101.325 kPa)(2.0 L)/(273.15 K) = (80 kPa)(V2)/(300.15 K)

Solving for V2, we get:

V2 = (101.325 kPa)(2.0 L)/(273.15 K) * (300.15 K)/(80 kPa) = 2.36 L

Therefore, the new volume of the helium sample is approximately 2.4 L (rounded to the nearest tenth).

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0.02314 moles of  NO₂ can be formed from the decomposition of 1.25 g of dinitrogen pentoxide.

The balanced equation for the decomposition of dinitrogen pentoxide is:

2 N₂O₅ → 4 NO₂ + O₂

The molar mass of N₂O₅  is 108.01 g/mol.

To determine the number of moles of N₂O₅  present in 1.25 g, we use the following calculation:

moles N₂O₅  = mass / molar mass

moles N₂O₅ = 1.25 g / 108.01 g/mol

moles N₂O₅ = 0.01157 mol

From the balanced equation, we can see that 2 moles of N₂O₅  decompose to form 4 moles of NO2. Therefore, the number of moles of NO2 produced can be calculated as:

moles  NO₂ = (0.01157 mol N2O5) × (4 mol NO2 / 2 mol N2O5)

moles  NO₂ = 0.02314 mol

Therefore, 0.02314 moles of  NO₂ can be formed from the decomposition of 1.25 g of dinitrogen pentoxide.

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252,212 Joules of energy are required to heat 100g of water from 35°C to 115°C water vapor.

To calculate the amount of energy required to heat water from 35°C to 100°C, we use the specific heat capacity of water, which is 4.18 J/(g°C). This means that it takes 4.18 Joules of energy to heat one gram of water by one degree Celsius.

So, the energy required to heat 100 g of water from 35°C to 100°C can be calculated as follows:

Q1 = m × c × ΔT

Q1 = 100 g × 4.18 J/(g°C) × (100°C - 35°C)

Q1 = 26,212 Joules

Next, we need to calculate the amount of energy required to vaporize the water at 100°C. This is done using the heat of vaporization of water, which is 2260 J/g.

So, the energy required to vaporize 100 g of water at 100°C is:

Q2 = m × Lv

Q2 = 100 g × 2260 J/g

Q2 = 226,000 Joules

Therefore, the total energy required to heat 100 g of water from 35°C to 115°C water vapor is:

Q = Q1 + Q2

Q = 26,212 Joules + 226,000 Joules

Q = 252,212 Joules

Thus, 252,212 Joules of energy are required to heat 100g of water from 35°C to 115°C water vapor.

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Answer:

silicon dioxide,xenon

Explanation:

Answer: the uncertainty in the mass of the object is 0.007 g.

Explanation:

The uncertainty in the mass of the object can be calculated using the formula for absolute uncertainty:

Absolute uncertainty = Maximum measured value - Minimum measured value / 2

In this case, the maximum measured value is 2.758 g and the minimum measured value is 2.744 g.

Plugging these values into the formula, we get:

Absolute uncertainty = (2.758 g - 2.744 g) / 2

= 0.014 g / 2

= 0.007 g

So, the uncertainty in the mass of the object is 0.007 g.
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1.8 moles of water are formed when 1.20 moles of ammonia reacts

How is ammonia used?

Ammonia produced by industry is used as fertilizer in agriculture to the tune of 80%. In addition to these uses, ammonia is used to make polymers, explosives, textiles, insecticides, dyes, and other compounds. It is also used to purify water sources.

Ammonia is a colorless, intensely unpleasant gas with a pungent, choke-inducing smell. It readily dissolves in water to produce an ammonium hydroxide solution that can irritate the skin and burn. Ammonia gas is easily compressed and, when put under pressure, turns into a clear, colorless liquid.

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

4 moles of ammonia gives 6 moles of water

Moles of H₂O = 1.2 moles of NH₃ x 6 moles of H₂O/4 moles of NH₃

Moles of H₂O = 1.8moles

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Answer: 239/94Pu → 239/95Am + 0/-1e

Explanation: The present chemical transformation involves the conversion of a neutron residing in the nucleus of the element Plutonium-239 to a proton, accompanied by the release of an electron by beta decay. The subatomic particle known as the proton remains confined within the atomic nucleus, thereby triggering a metamorphosis of the constituent element, resulting in the creation of Am-239. Meanwhile, the emission of a beta particle occurs from the nucleus.

At 15 °C, a certain reaction is able to produce 0.80 moles of product per minute.At 0.40 moles per minute the product be produced at 5 °C.

Moles are small burrowing mammals found in many parts of the world. They are typically brown or black in color and can be identified by their distinctive hairy snouts and short tails. Moles have a unique way of moving through soil and other material. They use their long claws to dig tunnels that serve as their home and pathways for foraging for food. Moles feed on a variety of insects and plant material, such as earthworms, grubs, and roots. They also help to aerate soil and improve water drainage. Moles are solitary animals and are rarely seen.

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Answer:

M=0.06998 mol/L

Explanation:

Orbital notation is a way of representing the electronic configuration of an atom, which describes the arrangement of electrons in its various energy levels or orbitals.

In this notation, each orbital is represented by a box or circle, and the electrons are represented by up or down arrows, which indicate their spin. The number and arrangement of boxes and arrows in the notation follow the rules of the Aufbau principle, the Pauli exclusion principle, and Hund's rule.

The Aufbau principle tells that electrons fill the least energy orbitals before filling higher energy orbitals. The first shell of an atom contains one s orbital, which can hold up to two electrons. The s orbital is represented by a single box or circle, and each electron is represented by an up or down arrow.

The electronic configuration for potassium (K) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹. In orbital notation, this would be represented as 1s: up arrow, down arrow; 2s: up arrow, down arrow; 2p: up arrow, up arrow, up arrow; 3s: up arrow, down arrow; 3p: up arrow, up arrow, up arrow; 4s: up arrow.

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The independent and dependent variables are compounds and elements, respectively.

Elements and compounds make up everything in our surroundings. Knowing how things operate can aid in our ability to comprehend our surroundings.

Water is one of the chemicals listed in the table (H2O). This molecule has 3 atoms, which can be broken down into 2 hydrogen (H) atoms and 1 oxygen atom (O).

Several compounds can be created by mixing the same two elements' atoms in different ratios.

Because these elements mix in various ways and in various quantities to create unique compounds, we have a huge variety of compounds in this universe.

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It requires 10.15 kilojoules of energy.

The term "vaporisation" (or "evaporation") often refers to the transformation of a liquid's condition into a vapour phase below its boiling point. The phrase, however, can also refer to the process of removing a solvent, independent of the temperature used.

When a body moves to exert force, it is said to be exerting work. Energy is the capacity to accomplish work. Energy is something we always need, and it can take many different forms.

If the gold is present in the liquid state, you only have to determine the latent heat of vaporization, or lvap. The empirical data for gold is 330 kJ/mol.

Q = mlvap

Q = (2 kg)(1 kmol/197 kg)(1,000 mol/1 kmol)

Q = 10.15 kJ

It needs an energy of 10.15 kilojoules

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The process decomposes dinitrogen pentoxide into nitrogen dioxide and oxygen. The reaction has a rate constant of 5.8103/s (5.8 10 3 / s).

According to the process described below, the thermal breakdown of N₂O₅ follows first order kinetics: N₂O₅→2NO₂+12O₂. Find the rate constant of the reaction if the starting pressure of N₂O₅   is 100 mm and the pressure created after 10 minutes is 130 mm.

The breakdown of N₂O₅  according to the equation: 2N₂O₅ (g)4NO₂(g)+O₂(g) is a first-order reaction. After 30 minutes of decomposition in a closed vessel, the total pressure created is 284.5 mm of Hg, and after full decomposition, the total pressure is 584.5 mm of Hg.

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Answer:

2NH₃(g) + 5F₂(g) → N₂F₄(g) + 6HF(g)

(a) mol of NH₃ required = 1.333 mol; mol of F₂ required = 3.333 mol

(b) mass of F₂ required = 142.5 g

(c) N₂F₄ produced = 10.38 g

Explanation:

2NH₃(g) + 5F₂(g) → N₂F₄(g) + 6HF(g)

What is Stoichiometry?

In chemical equations, unless stated otherwise, the reactants and products will theoretically always remain in stoichiometric ratios.

The stoichiometry of a reaction is the relationship between the relative quantities of products and reactants, typically a ratio of whole integers.

Consider the following chemical reaction: aA + bB ⇒ cC + dD.

The stoichiometry of reactants to products in this reaction is the ratio of the coefficients of each species: a : b : c : d.

Converting between moles and mass:

To convert from mass to moles, divide the mass present by the molar mass, resulting in the number of moles.

Thence, the formula for moles: n = m/M, where n = number of moles, m = mass present, and M = molar mass. This formula can be easily rearranged to find mass present from molar mass and moles, or molar mass from mass and moles.

a. How many moles of each reactant are needed to produce 4.00 moles of HF?

In the given chemical equation, the stoichiometry of the reaction is

2 : 5 : 1 : 6. Therefore, for every 2 moles of NH₃, we require 5 moles of F₂, which will produce 1 mole of N₂F₄ and 6 moles of HF.

mol of NH₃ required = 1/3 × mol of HF = 1.333 mol

mol of F₂ required = 5/6 × mol of HF = 3.333 mol

b. How many grams of F₂ are required to react with 1.50 moles of NH₃?

Using stoichiometry again: mol of F₂ required = 5/2 × mol of NH₃

∴ F₂ required = 3.75 mol.

Then we can convert this to mass: m = nM = (3.75)(2×19.00) = 142.5 g

c. How many grams of N₂F₄ can be produced when 3.40 grams of NH₃ reacts?

Converting mass to moles: n = m/M = 3.40/(14.01+1.008×3) = 0.1996 mol

Using stoichiometry again: mol of N₂F₄ produced = 1/2 × mol of NH₃

∴ N₂F₄ produced = 0.0998 mol

converting moles to mass: m = nM = (0.0998)(14.01×2+19.00×4)

∴ N₂F₄ produced = 10.38 g

The mass of iron present in 9.24 x [tex]10^{22}[/tex] atoms of Fe is approximately 0.852 grams.

What is Molar Mass?

Molar mass is the mass of one mole of a substance, expressed in grams per mole. It is calculated by summing the atomic masses of all the atoms in a molecule or formula unit.

The molar mass of iron (Fe) is approximately 55.85 g/mol. We can use this to convert the number of atoms of Fe to the mass of Fe.

First, we can calculate the number of moles of Fe in 9.24x[tex]10^{22}[/tex] atoms:

Mass of Fe = 9.24 x [tex]10^{22}[/tex] atoms x 55.845 g/mol / 6.022 x [tex]10^{-23}[/tex]atoms/mol

Mass of Fe = 0.852 g

So, the mass of iron present in 9.24 x [tex]10^{22}[/tex] atoms of Fe is approximately 0.852 grams.

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nuclear type of process is this

The content of a physical reaction differs from that of a chemical reaction. A chemical reaction changes the makeup of the substances in question; a physical change changes the look, smell, or plain presentation of a sample of matter without changing its content.

Nuclear reactions are not the same as chemical reactions. Atoms become more stable in chemical processes by engaging in electron transfers or by sharing electrons with other atoms.

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The pH of the solution can be calculated using the following steps:

Write the chemical equation for the dissociation of ethanoic acid:

CH3COOH + H2O ⇌ CH3COO- + H3O+

Write the equilibrium expression for the dissociation of ethanoic acid:

Ka = [CH3COO-][H3O+] / [CH3COOH]

Since the solution is equimolar in CH3COOH and CH3COO-, we can assume that the initial concentrations of CH3COOH and CH3COO- are equal. Let's use the variable x to represent the concentration of CH3COO- and CH3COOH in mol/L.

[CH3COOH] = x mol/L [CH3COO-] = x mol/L

Since CH3COOH is a weak acid, we can assume that only a small fraction of it dissociates in water. Let's use the variable y to represent the concentration of H3O+ ions in mol/L that are produced from the dissociation of CH3COOH. From the dissociation of ethanoic acid, we know that [CH3COO-] = [H3O+].

[CH3COO-] = y mol/L [H3O+] = y mol/L

Use the equilibrium expression to solve for the concentration of H3O+ ions:

Ka = [CH3COO-][H3O+] / [CH3COOH] 1.79 x 10^-5 = y^2 / x

Solving for y in terms of x, we get:

y = sqrt(Ka * x)

Calculate the pH of the solution using the equation:

pH = -log[H3O+]

pH = -log(y)

Substituting in the value of y from Step 5, we get:

pH = -log(sqrt(Ka * x))

Simplifying, we get:

pH = -0.5 * log(Ka * x)

Substituting in the value of Ka, we get:

pH = -0.5 * log(1.79 x 10^-5 * x)

Now we can calculate the pH for the solution by substituting the value of x as it is equimolar.

pH = -0.5 * log(1.79 x 10^-5 * x)

pH = -0.5 * log(1.79 x 10^-5 * 1)

pH = -0.5 * log(1.79 x 10^-5)

pH = 4.74

Therefore, the pH of an equimolar solution of ethanoic acid and Na+CH3COO- is 4.74.

The final temperature of the gas after doubling its volume to 80.0 L at -40.0°C is also -40.0°C.

To calculate the final temperature of the gas after doubling its volume from 40.0 L to 80.0 L at -40.0°C, we can use the combined gas law, which relates the initial and final states of a gas undergoing a change in temperature, pressure, and volume.

The combined gas law is given by:

(P1 * V1) / T1 = (P2 * V2) / T2

where:

Since the problem statement only provides information about the volumes of the gas and the initial temperature, we can assume that the pressure remains constant, and we can rearrange the equation to solve for T2:

T2 = (P2 * V2 * T1) / (P1 * V1)

Since the pressure and initial volume are not given, we can assume that they remain constant, and we can set P1 * V1 = P2 * V2.

Therefore, we can simplify the equation to:

T2 = (V2 * T1) / V1

Plugging in the given values:

V1 = 40.0 L (initial volume)

V2 = 80.0 L (final volume)

T1 = -40.0°C (initial temperature)

T2 = (80.0 L * -40.0°C) / 40.0 L

T2 = -40.0°C

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The moles of ammonium fluoride initially added in this experiment was 0.0216 moles.

Mole is a unit of measurement that is used in chemistry to measure the amount of a substance. It is a very important unit of measurement because it allows chemists to accurately measure the amount of a substance that is being used in a reaction. The mole is defined as the amount of a substance that contains the same number of particles as there are atoms in 12 grams of carbon-12..

First, we need to calculate the moles of calcium nitrate in the solution. We can do this by using the molarity and volume of the solution:
(4.61x10⁻¹ M)*(4.479x10¹ mL) = 0.0216 moles of calcium nitrate
(0.731 g)*(1 mol/55.847 g) = 0.0131 moles of calcium fluoride
(0.0216 moles)*(1 mol/1 mol)
= 0.0216 moles of ammonium fluoride
Therefore, the moles of ammonium fluoride initially added in this experiment was 0.0216 moles.

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Answer:

To calculate Δ∘rxn, we can use the following formula:

ΔG∘rxn = ΔH∘rxn - TΔS∘rxn

where ΔH∘rxn is the enthalpy change of the reaction, T is the temperature in Kelvin, and ΔS∘rxn is the entropy change of the reaction.

We know that ΔH∘rxn = -44.2 kJ and we want to find ΔS∘rxn at 25.0 ∘C (298 K). We can use the following formula to calculate ΔS∘rxn:

ΔG∘rxn = -RTlnK

where R is the gas constant (8.314 J/mol K), T is the temperature in Kelvin, and K is the equilibrium constant.

We can find K using the following formula:

ΔG∘rxn = -RTlnK K = e^(-ΔG∘rxn/RT)

We know that ΔG∘rxn = -44.2 kJ/mol and R = 8.314 J/mol K, so we can calculate K:

K = e^(-(-44.2 kJ/mol)/(8.314 J/mol K * 298 K)) K = 1.9 x 10^7

Now we can use K to calculate ΔS∘rxn:

ΔG∘rxn = -RTlnK ΔS∘rxn = -(ΔH∘rxn - ΔG∘rxn)/T ΔS∘rxn = -((-44.2 kJ/mol) - (-8.314 J/mol K * 298 K * ln(1.9 x 10^7)))/(298 K) ΔS∘rxn = -0.143 kJ/K

Therefore, ΔS∘rxn is -0.143 kJ/K.

To determine whether the reaction is spontaneous at 25 ∘C and standard pressure, we can use Gibbs free energy (ΔG). If ΔG < 0, then the reaction is spontaneous in the forward direction; if ΔG > 0, then it is spontaneous in the reverse direction; if ΔG = 0, then it is at equilibrium.

We know that ΔG∘rxn = -44.2 kJ/mol and T = 25 ∘C (298 K). We can use the following formula to calculate ΔG:

ΔG = ΔG∘ + RTlnQ

where Q is the reaction quotient.

At equilibrium, Q = K (the equilibrium constant). Since we calculated K earlier to be 1.9 x 10^7, we can use this value for Q.

ΔG = ΔG∘ + RTlnQ ΔG = (-44.2 kJ/mol) + (8.314 J/mol K * 298 K * ln(1.9 x 10^7)) ΔG = -43.6 kJ/mol

Since ΔG < 0, the reaction is spontaneous in the forward direction at 25 ∘C and standard pressure.

1. Record the current volume of NaOH in the burette.2. Add a few drops of phenolphthalein to the vinegar solution.

A solution is a method or process of resolving a problem or difficulty. It is typically a result of problem-solving, which is the process of working through details of a problem to reach a solution. Solutions are found through various methods including trial and error, research, and reasoning. When a solution is found, it is often a combination of various ideas, techniques, and strategies.

3. Titrate the solution until the endpoint is reached .4. Record the final volume of NaOH in the burette.5. Calculate the amount of NaOH consumed in the titration by subtracting the initial volume from the final volume.

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Taking into account definition of percent yield, the correct answer is option c): the percent yield for the reaction is 0.947.

In first place, the balanced reaction is:

CH₄ + 2 O₂ → CO₂ + 2 H₂O

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: if by reaction stoichiometry 16.05 grams of CH₄ form 44.01 grams of CO₂, 136 grams of CH₄ form how much mass of CO₂?

mass of CO₂= (136 grams of CH₄× 44.01 grams of CO₂)÷16.05 grams of CH₄

mass of CO₂= 372.92 grams

Then, 372.92 grams of CO₂ can be produced from 136 grams of CH₄.

The percent yield is the ratio of the actual return to the theoretical return expressed as a percentage and this is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:

percent yield= (actual yield÷ theoretical yield)× 100%

where the theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product.

In this case, you know:

Replacing in the definition of percent yield:

percent yield= (353 grams÷ 372.92 grams)× 100%

Solving:

percent yield= 94.7%= 0.947

Finally, the percent yield for the reaction is 0.947.

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Answer:

colloid

Explanation:

there's no explanation

The reaction's G value at 805 K is -2625.7 kJ.

Sulfur dioxide gas is the byproduct of the interaction between sulphur and oxygen. Sulphurous acid is created when sulphur dioxide dissolves in water. Sulfuric acid causes blue litmus paper to turn red. Non-metal oxides typically have an acidic character.

ΔG = ΔH - TΔS

where ΔH is the enthalpy change, ΔS is the entropy change, T is the temperature in Kelvin, and ΔG is the change in Gibbs free energy.

Substituting the given values:

ΔG = -2374 kJ - (805 K)(312.2 J/K)

ΔG = -2374 kJ - 251717 J

ΔG = -2374 kJ - 251.7 kJ

ΔG = -2625.7 kJ

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The result of the transformation, denoted by the symbol X, is 12 6C.

The chemical symbol for the unstable nucleus, X, is represented by the nuclear equation, where the letter a stands for the particle's mass number and the letter b for the number of protons.

the process of changing one chemical element into another. Since a transmutation involves a change to the atomic nuclei's structure, it can either be produced via a nuclear reaction (q.v. ), like neutron capture, or it can happen naturally due to radioactive decay, like alpha and beta decay (qq. v.).

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