REVISION -Chemical reactions - Types

Types of chemical reactions.
The only types you need to know for this standard is:
Thermal decomposition
Oxidation - Reduction
Precipitation

Steps:
1. Look for any reaction that has only one reactant. This will be a Thermal decomposition reaction.
2. Any reaction that has two solutions going to a solid and a solution OR a reaction where all of the partners are swappping is a Precipitation reaction.
3. Any remaining reaction will be a Oxidation - Reduction reaction

Example:
Classify the reactions below:
(a) C (s) + O2 (g) → CO2 (g)
(b) Ca(OH)2 (s) → CaO (s) + H2O (g)
(c) Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s)
(d) CuCl2 (aq) + K2CO3 (aq) → CuCO3 (s) + 2KCl (aq)

Step 1: Thermal decomposition:
(b) Ca(OH)2 (s) → CaO (s) + H2O (g)

Step 2: Precipitation:
(d) CuCl2 (aq) + K2CO3 (aq) → CuCO3 (s) + 2KCl (aq)

Step 3: Oxidation - Reduction
(a) C (s) + O2 (g) → CO2 (g)
(c) Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s)