FIVE TYPES OF CHEMICAL REACTIONS Chapter 8 section 3

Most often produces C02 and H20 Example: 1. Combustion Needs oxygen Most often produces C02 and H20 Example: AB + O2  C02 + H20 + heat

2. Combination Two or more compounds/elements combine to form one. Example A + B  AB

3. Decomposition One compound breaks into 2- 3 compounds/ elements. Involves heat or electrical current Example AB  A + B Q

4. Single Replacement Reactants exchange partners – one change Example A + BC  AC + B

5. Double Replacement Reactants exchange partners- 2 changes Example AB + CD  AD + BC