Question

Write the chemical equations for the following activities.

(a) NaOH solution was added to HCl solution.

(b) Zinc dust was added to dilute H₂SO₄ .

(c) Dilute nitric acid was added to calcium oxide.

Answer 1

(a) When NaOH reacts with HCl, it gives NaCl and water.

(b) When zinc reacts with dilute sulphuric acid, it forms zinc sulphate and hydrogen gas is liberted.

(c) When dilute nitric acid reacts with calcium oxide, it forms calcium nitrate and water.