1. Chemical Reaction Types

2. Synthesis Two or more elements or compounds combine to form a more complex product A + B  AB 2H 2 + O 2  2H 2 O 2Na + Cl 2  2 NaCl

3. Decomposition A compound is broken down into two or more simpler elements or compounds AB  A + B 2H 2 O  O 2 + 2H 2

4. Single Displacement One element is displaced from a compound by another element A + BC  AC + B Zn + 2HCl  ZnCl 2 + H 2 2Al + 3CuSO 4  Al 2 (SO 4 ) 3 + 3Cu

5. Double Displacement Two compounds exchange ions to form two different compounds AB + CD  AD + CB NaCl + AgNO 3  NaNO 3 + AgCl

6. Acid-Base Neutralization A special type of double displacement reaction The H ion reactions with the OH ion to form water + an ionic salt HCl + NaOH  H 2 O + NaCl H 2 SO 4 + NaOH  2H 2 O + Na 2 SO 4

7. Synthesis Metal + oxygen gas  metal oxide Nonmetal + oxygen gas  nonmetal oxide Metal oxide + water  metal hydroxide Nonmetal oxide + water  acid Metal + nonmetal  salt

8. Double Displacement Acid + base  salt + water – Neutralization CO 3 + acid  water + CO 2 + salt Hydrocarbon + O 2  CO 2 + water – Combustion

9. Other Reaction Types Metal + acid  a salt + hydrogen gas Metal + water  base + hydrogen gas Carbonate + acid  salt + H 2 O + CO 2 Metallic Chlorates + heat → chloride + O 2 Nonmetallic oxide + water → Acid Metallic oxide + water → Base