Question

Write balanced chemical equation for Potassium dichromate + sulphuric acid gives out Potassium Sulphate + chromium sulphate + water + oxygen

Answer 1

Balanced chemical equation for the reaction of Potassium dichromate and sulfuric acid.

• The given word equation is as follows:

Potassium dichromate + sulfuric acid $\rightarrow$ Potassium Sulfate + chromium sulfate + water + oxygen.

• The chemical equation for the above-given word equation is:

$K_2Cr_2O_7+H_2SO_4\rightarrow K_2SO_4+Cr_2(SO_4)_3+H_2O+O_2$

• The above equation is not an balanced one because it doesn't have an equal number of atoms on the reactant as well as product side.
• The balanced chemical equation for the given word equation is as follows:

$2K_2Cr_2O_7+8H_2SO_4\rightarrow 2K_2SO_4+2Cr_2(SO_4)_3+8H_2O+3O_2$

• The above-given equation is considered as balanced because due to the following data:

Atoms in reactant side are:

K =4

Cr= 4

O = 46

H = 16

S = 8

Atoms in the product side are:

K =4

Cr= 4

O = 46

H = 16

S = 8

• As atoms in both sides are same, it is a balanced equation.

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