Neutralisation Reactions
Acids and Bases Worksheet
1. Chemical Equations
Write the equations for the following reactions. Include state symbols in your answer.
a) Hydrochloric acid and sodium carbonate.
2HCl(aq) + Na2CO3(aq)
→
2NaCl(aq) + CO2(g) + H2O(l)
b) Magnesium hydroxide and nitric acid.
2HNO3(aq) + Mg(OH)2(s)
→
Mg(NO3)2(aq) + 2H2O(l)
c) Ethanoic acid and sodium hydrogen carbonate.
CH3COOH(aq) + NaHCO3(aq)
→
CH3COONa(aq) + H2O(l) + CO2(g)
d) Phosphoric acid and iron (II) hydroxide.
(The salt formed is insoluble)
2H3PO4(aq) + 3Fe(OH)2(s)
→
Fe3(PO4)2(s) + 6H2O(l)
*You are not expected to know the solubility of iron (II) phosphate.
e) Propanoic acid and aluminium hydroxide.
(The salt formed is soluble)
3C2H5COOH(aq) + Al(OH)3(s)
→
(C2H5COO)3Al(aq) + 3H2O(l)
*You are not expected to know the solubility of aluminium propanoate.
f) Calcium and sulfuric acid.
Ca(s) + H2SO4(aq)
→
CaSO4(s) + H2(g)
g) Hydrobromic acid and copper oxide.
2HBr(aq) + CuO(s)
→
CuBr2(aq) + H2O(l)
2. Ionic Equations
Write the ionic equations for the reactions in question 1.
a) Hydrochloric acid and sodium carbonate.
2H+(aq) + CO32-(aq)
→
CO2(g) + H2O(l)
b) Magnesium hydroxide and nitric acid.
2H+(aq) + Mg(OH)2(s)
→
Mg2+(aq) + 2H2O(l)
c) Ethanoic acid and sodium hydrogen carbonate.
H+(aq) + HCO3–(aq)
→
H2O(l) + CO2(g)
d) Phosphoric acid and iron (II) hydroxide.
There is no appropriate ionic equation as too many of the substances are insoluble.
e) Propanoic acid and aluminium hydroxide.
3H+(aq) + Al(OH)3(s)
→
3H2O(l) + Al3+(aq)
f) Calcium and sulfuric acid.
Ca(s) + 2H+(aq) + SO42-(aq)
→
CaSO4(s) + H2(g)
g) Hydrobromic acid and copper oxide.
2H+(aq) + CuO(s)
→
H2O(l) + Cu2+(aq)