1. Types of Reaction Student Goals:
I will be able to define synthesis, decomposition, single-replacement, and double-replacement reactions.
I will be able to classify a reaction as synthesis, decomposition, single-replacement, double-replacement, or combustion.

2. Summary The 5 different chemical reactions 1. Synthesis/Combination
2. Decomposition
3. Single Displacement
4. Double Displacement
5. Combustion/Oxidation

3. Chemical Reactions

4. Synthesis (combination)
aka composition reaction
A + B  AB
Two or more substances combine to form a new compound.
2H2(g) + O2(g) 2H2O(l)

5. Synthesis (combination)
Medicine
Flavorings
Plastics
High energy fuels

6. Decomposition AB  A + B 2H2O(l)  2H2(g) + O2(g)
A single compound undergoes a reaction
that produces two or more simpler
substances.
AB  A + B
electricity
2H2O(l)  2H2(g) + O2(g)

7. Decomposition Speed up decomposition Toxic waste Waste Fats Explosives
Slow down decomposition
Anti-rust
Anti-aging

8. Single replacement Design of batteries A + BC B + AC
aka Displacement reaction
One element replaces a similar element in
a compound.
A + BC B + AC
Design of batteries
3Zn + 2Cu3PO4  6Cu + Zn3(PO4)2

9. Double replacement Purification (barium is poisonous)
The ions of two compounds exchange places
in an aqueous solution to form two new
compounds.
AB + CD AD + CB
Purification (barium is poisonous)
BaCl2 + MgSO BaSO4 + MgCl2
Ba2+(aq)+2Cl-(aq)+Mg2+(aq)+SO42-(aq) BaSO4(s)+Mg2+(aq)+2Cl-(aq)

10. Double replacement Extraction AB + CD AD + CB Ag + Mg
(Nitric acid)  AgNO3(aq) + Mg(NO3)2(aq)
AgNO3(aq) + NaCl(aq)  AgCl(s) + NaNO3(aq)

11. Double replacement Neutralizing corrosives AB + CD AD + CB
NaOH + CH3COOH NaC2H3O2 +HOH

12. Oxidation (combustion) [loss of electrons]
A substance combines with oxygen, releasing a large amount of energy in the form of light and heat.
C4H10 + O CO2 + H2O

13. Oxidation (combustion) [loss of electrons]
Improve oxidation
Cleaner burning fuels
Better fireworks
Antiseptic
Hyperbaric chambers
Resist oxidation
Rust proofing
Antioxidants

14. Review 1) Mg + O2 MgO 2) Cl2 + LiI 3) Al + Pb(NO3)2 LiCl + I2
Predict the products and classify the following reactions:
1) Mg + O2
2) Cl2 + LiI
3) Al + Pb(NO3)2
4) CaO + HCl
5) (NH4)3PO4 + Ba(OH)2
MgO
LiCl + I2
Al(NO3)3 + Pb
CaCl2 + H2O
Ba3(PO4)2 + NH4OH

15. 6) C4H10 + O2 7) H2SO4 + KOH CO2 + H2O 8) Cu + AgNO3 K2SO4 + H2O
Predict the products and classify the following reactions:
6) C4H10 + O2
7) H2SO4 + KOH
8) Cu + AgNO3
9) AgNO3 + KCl
10) Cl2 + KI
CO2 + H2O
K2SO4 + H2O
Cu(NO3)2 + Ag
KNO3 + AgCl
KCl + I2