Question

balance and write in symbols
a) Copper + Sulphuric acid⁷
b) Zinc + dilute sulphuric⁷
c) Lead dioxide + hydrochloric acid⁷​

Answer 1

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

H

2

SO

4

(aq)+Zn(s)→ZnSO

4

(aq)+H

2

(g)

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

2HCl(aq)+Mg(s)→MgCl

2

(aq)+H

2

(g)

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

3H

2

SO

4

(aq)+2Al(s)→Al

2

(SO

4

)

3

(aq)+3H

2

(g)