1. TYPES OF CHEMICAL REACTIONS

2. There are FIVE main types of chemical reactions
Synthesis Reaction
Decomposition Reaction
Single Displacement Reaction
Double Displacement Reaction
Combustion Reaction

3. Synthesis Reactions EX: 4 Al + 3 O2 2 Al2O3 2 Na + Cl2 2 NaCl
Two reactants combine to form ONE product
“Addition” reaction
General format:
A B AB
EX:
4 Al + 3 O2 2 Al2O3
2 Na + Cl NaCl

4. Soap Opera Version “Going Out” +

5. Decomposition Reactions
ONE reactant breaks down into two or more products
Opposite of synthesis
General Format:
AB A B
EX:
2 KClO KCl O2
2 MgO Mg + O2

6. Soap Opera Version The “Break-Up” +

7. Single Displacement Reactions
One ELEMENT replaces another element
in a compound
General Format:
A + BC AC + B
EX:
Ca + 2 Ag(NO3) Ag + Ca(NO3)2
Fe + CuCl2 FeCl2 + Cu

8. Soap Opera Version “The Home Wrecker” + +

9. Double Displacement Reactions
TWO compounds produce two NEW COMPOUNDS
The positive ions replace each other
General Format:
AB + CD AD + CB
EX:
NaCl KBr NaBr KCl
2 K(OH) + Pb(NO3) K(NO3) + Pb(OH)2
H3(PO4) + 3 K(OH) K3(PO4) + 3 H2O

10. Soap Opera Version “Wife Swap ” + +

11. Combustion Reactions A HYDROCARBON (contains hydrogen and
carbon and sometimes oxygen) combines
with OXYGEN to form CARBON DIOXIDE
and WATER
General Format:
CXHY O CO2 + H2O
EX:
CH O CO2 + 2 H2O

12. Your Turn!! synthesis single displacement single displacement
2 Ca + O2  2 CaO
Br2 + 2 LiI 2 LiBr + I2
2 Al + 3 Fe(NO3)2  2 Al(NO3)3 + 3 Fe
MgO + HCl  MgCl2 + H2O
2 C4H O2  8 CO H2O
single displacement
single displacement
double displacement
combustion

13. Your Turn!! decomposition double displacement double displacement
2 H2O2  2 H2O + O2
2 (NH4)3(PO4) + 3 Sr(OH)2  Sr3(PO4)2 + 6 (NH4)(OH)
H2(SO4) + 2 Na(OH)  Na2(SO4) + 2 H2O
Zn + 2 Ag(NO3)  Zn(NO3)2 + 2 Ag
Cu(NO3) + KCl  K(NO3) + CuCl
decomposition
double displacement
double displacement
single displacement
double displacement