Question

1. Write Balanced Chemical Equations for the Following Reactions.

A) Aluminium + Copper chloride Aluminium chloride + Copper

B) Copper + Silver nitrate Copper nitrate + Silver

C) Magnesium oxide + Hydrochloric acid Magnesium Chloride + Water

D) Calcium hydroxide + Carbon dioxide Calcium carbonate + Water

E) Zinc carbonate(s) Zinc oxide(s) + Carbon dioxide(g)

2. Balance the following chemical equations: .

A) Pb(NO3)2+ KI KNO3+PbI2

B) BaCl2+ Al2(SO4)3 AlCl3+ BaSO4

C) NH3+O2

N2 +H2O

D) BaCl2 +NA2SO4 BaSO4+ NaCl

E) Mg +O2 MgO

3. What happens when: .

a) Hydrochloric acid reacts with Sodium Hydroxide

b) Hydrogen gas and Chlorine gas combine together.

c) Magnesium ribbon burns.

d) Silver is exposed to Hydrogen sulphide for a long time.

e) Quick lime is mixed with water.

f) Silver bromide will be exposed to the sunlight.

Answer 1

3.the reaction forms the following:
a) sodium chloride and water
b) hydrochloric acid (dry)
c) magnesium oxide
d) silver sulphide and hydrogen gas
e) calcium hydroxide (slaked lime)
f) silver and bromine