1. Types of Chemical Reactions

2. Combination/Synthesis Reaction
General Equation:
R + S  RS
Reactants: Generally two elements or two compounds.
Probable Products: A single compound
Example:
2Mg(s) + O2(g)  2MgO(s)
Practice problems pg 214 #13-14

3. Decomposition General Equation:
RS  R + S
Reactants: Generally a single binary or ternary compound
Probable Products: Two or more elements
Example:
2H2O(l)  2H2(g) + O2(g)
Practice problems pg 216 #15-16

4. Combustion General Equation:
fuel + O2  CO2 +H2O
Reactants: A compound of C, H, (O) and oxygen
Probable Products: Carbon dioxide and water
Example:
2C3H8O(g) + 9O2(g)  6CO2(g) + 8H2O(l)
Practice problems pg 221 #20-21

5. Single Displacement General Equation:
R + TS  RS + T
Reactants: An element and a compound. For displacement to occur, the element that is displaced must be less active than the element that is doing the displacing.
Probable Products: A different element and a new compound
Example:
Zn(s) + 2HCl(l)  H2(g) + ZnCl2(l)
Practice problems pg 218 #17

6. Double Displacement General Equation: Reactants: Two ionic compounds
RU + TS  RS + UT
Reactants: Two ionic compounds
Probable Products: Two new ionic compounds
Example:
Na2CO3 + CuSO4  Na2SO4 + CuCO3
Practice problems pg 220 #18-19