Question

Write the formulae of sodium chloride and sodium carbonate.

Answer 1

The formula of sodium chloride is NaCl and that of sodium carbonate is Na₂CO₃.
An aqueous solution of sodium chloride is neutral because sodium chloride is formed from a strong acid, hydrochloric acid (HCl), and a strong base, sodium hydroxide(NaOH). When sodium chloride is dissolved in water, it gets hydrolysed to give equal amounts of hydroxide and hydrogen ions, and this makes its aqueous solution neutral.