Question

Write the following chemical reactions including the physical states of the substances and
balance chemical equations. (AS1
)
(a) Sodium Hydroxide reacts with Hydrochloric acid to form Sodium Chloride and Water.
(b) Barium Chloride reacts with liquid Sodium Sulphate to leave Barium Sulphate as a
precipitate and also form liquid Sodium Chloride

Answer 1

Explanation:

(a)NaOH is a base and HCl is an acid . An acid and base always react to form a salt and water, and it is called neutralization. The salt formed in this reaction is sodium chloride, NaCl. ... NaOH + HCl = NaCl + H2O.

(b)For example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature. The reactants changes into ions when dissolved in water and there is an exchange of ions in solution