Question

Write the word equation for the reaction:

Sodium metal reacts with water to give sodium hydroxide and hydrogen gas.

Answer 1

• A chemical reaction is represented by a word equation that uses the names of the substances involved.'
• Substances present on the left side of the arrow are reactants - Sodium, Water.
• Substances present on the right side of the arrow are products - Sodium hydroxide, Hydrogen gas.

$$\begin{gathered} \mathrm{Sodium}+\mathrm{Water}\to \mathrm{Sodium}\mathrm{hydroxide}+\mathrm{Hydrogen}\mathrm{gas} \\ \mathrm{Na}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to \mathrm{NaOH}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right) \end{gathered}$$