1. Types of Reactions

2. 1) Synthesis Reaction  + Α Β +  ΑΒ
2Na Cl  2NaCl

3. 2) Single Displacement A + BC 
AC B
Zn HCl  ZnCl2 + H2

4. +  + A B + C D  A D + C B CaCO3+ 2HCl CaCl2 + H2CO3
3) Double Displacement +  +
A B C D  A D + C B
CaCO3+ 2HCl CaCl2 + H2CO3

5. 4) Decomposition  +
AB  A B
2H2O  H O2

6. 5) Combustion Reaction

7. Combustion of Octane in a 4-Stroke Engine
2C8H O2 ---> 16CO2 + 18H2O

8. Combustion Reaction
2C4H O > 8CO H2O