Question

Define the Chemical equation.

Answer 1

A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Chemical reactions are represented on paper by chemical equations.

For example, hydrogen gas (H${}_2$) can react (burn) with oxygen gas (O${}_2$) to form water (H${}_2$O). The chemical equation for this reaction is written as:

$2H_2+O_2\to 2H_{2}O$