Question

Balance the following equation:
(a) HCI + Zn ------ ZnCl2 + H2
(b) Na + O2 ------ Na2O
(c) Mg + HCI ----- MgCl2 + H2
(d) Na + H2SO4 ------- Na2 SO4 + H2​

Answer 1

Explanation:

a)

Zn + 2HCl → ZnCl2+ H2

b)4Na + O2 → 2Na2O

c)

Mg + 2HCl → MgCl2 + H2

d)

2Na + H2SO4 → Na2SO4 + H2

Answer 2

Answer:

a. Zn(s) + 2 HCl(aq) = H2(g) + ZnCl2(aq).

b. 4Na + O2 → 2Na2O