1. Types of Chemical Reactions
Keys to Identifying the 5 Types of Chemical Reactions

2. Synthesis
A + X → AX
2 Na + Cl2 → 2 NaCl

3. Decomposition
AX → A + X
2 H2O → 2 H2 + O2

4. Na (s) + KCl (s) → NaCl (s) + K (s)
Single Replacement
AB + X → AX + B
Na (s) + KCl (s) → NaCl (s) + K (s)

5. Double Replacement
AX + BY → AY + BX
BaCl2 + MgSO4 → BaSO4 + MgCl2

6. Hydrocarbon + Oxygen → Carbon dioxide + Water
Combustion
Hydrocarbon + Oxygen → Carbon dioxide + Water
C5H12 + O2 → H2O + CO2

7. CH4 (g)+ 2 O2 (g) CO2 (g)+ 2H2O (l)
Methane Bubble
CH4 (g)+ 2 O2 (g) CO2 (g)+ 2H2O (l)
What type of reaction is this?
What is supposed to happen?
What are the products?