Question

Tick the most appropriate answer:

• A. the reactants are written on the left hand side
• B. the products are written on the right hand side
• C. the number of atoms of each element on the reactants side is equal to the number of atoms of each element on the product side
• D. all the above

Answer 1

The correct option is D

all the above

Explanation:

Balanced chemical equation: An equation in which the number of each atom of an element on the reactants side is equal to the number of each atom of an element on the product side is called a balance equation.

Example: Decomposition of hydrogen peroxide

$\underset{\mathrm{Hydrogen}\mathrm{peroxide}}{2{\mathrm{H}}_2{\mathrm{O}}_2\left(\mathrm{l}\right)}\stackrel{{\mathrm{MnO}}_2}{\to }\underset{\mathrm{Water}}{2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}$

Atoms	Reactant	Product
Hydrogen(H)	4	4
Oxygen(O)	4	4

Hence, Option (D) is the correct answer.