Question

Question 5.4
Translate the following statement into chemical equation and then balance it:

Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Answer 1

The chemical equation for the given chemical reaction is:
$\text{K (s)}+{\text{H}}_2\text{O (l)}\to \text{KOH (aq)}+{\text{H}}_2\text{(g)}$

The balanced chemical equation is:
$2\text{K (s)}+2{\text{H}}_2\text{O (l)}\to 2\text{KOH (aq)}+{\text{H}}_2\text{(g)}$