For each of the substances listed below. write the formulae of two chemicals that will react together to form the substance.
(a) magnesium nitrate
(b) zinc chloride
(c) calcium sulphate
(d) lead nitrate
(e) potassium sulphate

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Solution

(a) Magnesium (Mg) and nitric acid (HNO₃) are two chemicals that will react together to form magnesium nitrate.

(b) Zinc metal (Zn) and hydrochloric acid (HCl) are two chemicals that will react together to form zinc chloride.

(c) Calcium (Ca) and sulphuric acid (H₂SO₄) are two chemicals that will react together to form calcium sulphate.

(d) Lead metal (Pb) and nitric acid (HNO₃) are two chemicals that will react together to form lead nitrate.

(e) Potassium metal (K) and sulphuric acid (H₂SO₄) are two chemicals that will react together to form potassium sulphate.

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