Question

Write balanced chemical equations for the following. a. Dilute sulphuric acid reacts with aluminium.
b. Copper is heated in air.
c. Zinc is added to a solution of ferrous sulphate

Answer 1

Explanation:

a) Dilute sulphuric acid reacts with zinc granules to produce zinc sulphate and hydrogen gas

 H2SO4(aq)+Zn(s)→ZnSO4(aq)+H2(g)

(b) Dilute hydrochloric acid reacts with magnesium ribbon to produce magnesium chloride and hydrogen gas.

2HCl(aq)+Mg(s)→MgCl2(aq)+H2(g)

(c)  Dilute sulphuric acid reacts with aluminium powder to produce aluminium sulphate and hydrogen gas.

 3H2SO4(aq)+2Al(s)→Al2(SO4)3(aq)+3H2(g) 

(d)  Dilute hydrochloric acid reacts with iron filings to produce ferric chloride and hydrogen gas.

6HCl(aq)+Fe(s)→2FeCl3(aq)+3H2(g)