What is a particle found in the nucleus with a natural no electrical charge

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Answer 1

Answer: The answer is neutrons.

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For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.945 M solution of FeCl2 is required to react completely with 4.32 ×1021 molecules of O2?

Answers

Answer:

0.01M

Explanation:

Given paramters:

Volume of FeCl₂ = ?

Concentration = 0.945M

Number of molecules of O₂ = 4.32 x 10²¹molecules

Solution:

The balanced reaction equation is given below:

4FeCl₂ + 3O₂ → 2Fe₂O₃ + 4Cl₂

Now, to solve the problem we use mole relationship between the compounds.

We work from the known to the unknown compounds. Here, the known is the oxygen gas because from the given parameters we can estimate the number of moles of the reacting gas.

number of moles of O₂ = $(number of elementary of particles)/(6.02 x 10^(23))$

number of moles of O₂ = $(4.32 x 10^(21))/(6.02 x 10^(23))$

number of moles of O₂ = 0.007mole

now, from the reaction equation we find the number of moles of the FeCl₂:

3 mole of O₂ reacted with 4 moles of FeCl₂

0.007mole of O₂ reacted with $(4 x 0.007)/(3)$ = 0.0096mole O₂

Now to find the volume of FeCl₂ we use the expression below;

volume of FeCl₂ = $(number of moles)/(concentration)$

= $(0.0096)/(0.945)$

= 0.01L

Final answer:

10.1 milliliters of 0.945 M solution of FeCl2 are required to react completely with 4.32 x10^21 molecules of O2.

Explanation:

Given the balanced chemical equation: 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g) we know that 4 moles of FeCl2 react with 3 moles of O2. Avogadro's number (6.02 x 10^23) can be used to convert the given molecules of O2 into moles: 4.32 x 10^21 molecules of O2 is equal to 0.00718 Moles of O2.

Using stoichiometry and the molar ratio from the balanced equation, this amount of O2 would react completely with 0.00958 Moles of FeCl2. Given that the solution is 0.945 M (moles/liter), we can calculate the necessary volume of FeCl2 solution:

Volume = Moles / Molarity, therefore, Volume = 0.00958 Moles / 0.945 M = 0.0101 liters or 10.1 milliliters of 0.945 M solution of FeCl2 are required to react completely with 4.32 x10^21 molecules of O2.

Learn more about Chemistry stoichiometry here:

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Marfan syndrome is a genetic disorder caused by a dominant allele.describe how marfan syndrome is inherited

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Marfan syndrome is a genetic disorder caused by a dominant allele. It is inherited in an autosamal dominant pattern which means that one copy of the mutated gene from at least one parent is enough to give the disorder to that person. If it is recessive, both parents must have it for their offspring to get it.

Why are some lava's viscous than other's?

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Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature.

Unlike kinetic energy, potential energy is a. energy of motion. b. stored. c. conserved. d. not measurable.

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Potential energy is B: Stored energy because the energy is at rest.

Unlike kinetic energy, potential energy is stored.

Potential energy is energy at rest.

The only tissue in your body that is able to contract , or shorten

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The only tissue in your body that can contract or shorten is your muscle.

Your muscle tissues.

When Kay added 30 g of hydrochloric acid (HCl) to 65 g of Zn, bubbles appeared and a white precipitate, zinc chloride (ZnCl2) was produced. She found that the mass of the zinc chloride was 93 g. Since the Law of Conservation of Matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. What is the best explanation for the missing 2 g?A) 2 g of zinc disappeared.
B) 2 g of hydrogen gas were produced.
C) Kay didn't correctly mass the precipitate.
D) Kay didn't collect all of the precipitate.

Answers

Answer: B) 2 g of hydrogen gas were produced.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$Zn(s)+2HCl(aq)\rightarrow ZnCl_2(s)+H_2(g)$