Question

define chemical equation​

Answer 1

Chemical equation - It is the symbolic representation of chemical reaction in terms of symbols and formulas of reactant and product.

Types of chemical equation :

1) Word equation - It is chemical equation in which reactants and products are written by using their names.

Example : Hydrogen + Oxygen $\longrightarrow$ Water

2) Symbolic equation - It is the equation in which reactants and products are written in terms of symbols and formula.

It is of two types :

• Unbalanced equation - The equation in which number of atoms present in reactant is not equal to the number of atoms present in product.
• example - $H_2$ + $O_2$ $\longrightarrow$ $H_{2}O$
• Balanced equation - It is the equation in which number of atoms present in reactant is equal to the number of atoms present in product.
• example - 2$H_2$ + $O_2$ $\longrightarrow$ 2$H_{2}O$

3)Ionic equation - It is the equation in which reactants and products are written in the form of their ions.