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aivan3 [116]
3 years ago
13

The paths in which electrons circle the nucleus according to the bohr model

Chemistry
1 answer:
drek231 [11]3 years ago
5 0
The tiny positive<span> core of </span>an atom<span>; contains protons and neutrons. the paths in which electrons circle the nucleus according to the Bohr model. building blocks of matter represented by a symbol. </span>
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Bromine has chemical properties most similar to...
Aleksandr-060686 [28]
Flourine.

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3 years ago
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Predict the products of each of the following reactions and then balance the chemical equations.
Nookie1986 [14]

<u>Answer:</u> The chemical equations are given below.

<u>Explanation:</u>

  • <u>For a:</u> Fe is heated in an atmosphere of steam.

The chemical equation follows:

3Fe(s)+4H_2O(g)\rightarrow Fe_3O_4(s)+4H_2(g)

By Stoichiometry of the reaction:

3 moles of iron reacts with 4 moles of steam to produce 1 mole of iron (II,III) oxide and 4 moles of hydrogen.

  • <u>For b:</u> NaOH is added to a solution of Fe(NO_3)_3

The chemical equation follows:

Fe(NO_3)_3+3NaOH\rightarrow Fe(OH)_2+3NaNO_3

By Stoichiometry of the reaction:

1 mole of iron nitrate reacts with 3 moles of sodium hydroxide to produce 1 mole of iron hydroxide and 3 moles of sodium nitrate.

  • <u>For c:</u> FeSO_4 is added to an acidic solution of KMnO_4

The chemical equation follows:

10FeSO_4+2KMnO_4+8H_2SO_4\rightarrow 5Fe_2(SO_4)_3+K_2SO_4+2MnO_4+8H_2O

By Stoichiometry of the reaction:

10 moles of iron(II) sulfate reacts with 2 moles of potassium permangante and 8 moles of sulfuric acid to produce 5 moles of iron(III) sulfate, 1 mole of potassium sulfate, 2 moles of manganese oxide and 8 moles of water.

  • <u>For d:</u> Fe is added to a dilute solution of H_2SO_4

The chemical equation follows:

Fe+H_2SO_4\rightarrow FeSO_4+H_2

By Stoichiometry of the reaction:

1 mole of iron reacts with 1 mole of sulfuric acid to produce 1 mole of iron sulfate and 1 mole of hydrogen gas.

  • <u>For e:</u> A solution of Fe(NO_3)_2 and HNO_3 is allowed to stand in air.

The chemical equation follows:

3Fe(NO_3)_2+4HNO_3\rightarrow 3Fe(NO_3)_3+NO+H_2O

By Stoichiometry of the reaction:

3 moles of iron(II) nitrate reacts with 4 moles of nitric acid to produce 3 moles of iron(III) nitrate, 1 mole of nitric oxide and 1 mole of water.

  • <u>For f:</u> FeCO_3 is added to a solution of HClO_4

The chemical equation follows:

FeCO_3+2HClO_4\rightarrow Fe(ClO_4)_2+CO_2+H_2O

By Stoichiometry of the reaction:

1 mole of iron(II) carbonate reacts with 2 moles of perchloric acid to produce 1 moles of iron(II) perchlorate, 1 mole of carbon dioxide and 1 mole of water.

  • <u>For g:</u> Fe is heated in air

The chemical equation follows:

2Fe+O_2\rightarrow 2FeO

By Stoichiometry of the reaction:

2 moles of iron reacts with 1 mole of oxygen gas to produce 2 moles of iron(II) oxide.

Hence, the chemical equations are given above.

7 0
3 years ago
For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
poizon [28]
14 neutrons... hope it is correct!!!!!!!!
3 0
3 years ago
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Consider the following chemical equilibrium: Now write an equation below that shows how to calculate from for this reaction at a
borishaifa [10]

Answer:

Kp=Kc *(RT)+-3

Explanation:

The relation between Kp and Kc is given below:

Where,

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant , R = 0.082057 L atm.mol⁻¹K⁻¹

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

Δn = (0)-(2+1) = -3

Thus, Kp is:

Kp=Kc *(RT)+-3

6 0
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What happens when an acid and a base mix?
zavuch27 [327]

Answer:

Neutralization.

Explanation:

"In chemistry, neutralization is a chemical reaction in which an acid and a base react quantitatively with each other."

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