1. Types of Reactions
Chemistry
Mr. Manley

2. Vocabulary Reactant Product Combination reaction
Decomposition reaction
Single replacement reaction
Double replacement reaction
Acid-base reaction
Combustion reaction

3. Combination
Two or more simple compounds combine to form a more complicated compound.
A + B  AB
One example of a Combination reaction is the combination of iron and sulfur to form iron (II) sulfide:
8 Fe + S8  8 FeS

4. Decomposition The opposite of a Combination reaction
A complex structure breaks down into simpler structures
AB  A + B
2 H2O  2 H2 + O2
2 H2SO4 + 2C12H22O11 24C + 24H2O +2SO2

5. Single replacement
One element trades places with another element in a compound
A + BC  AC + B
2 Na + 2 H2O  2 NaOH + H2
Mg + 2 NaCl  MgCl2 + 2 Na

6. Double replacement
Anions and cations of two different molecules switch places, forming two entirely different compounds
AB + CD  AD + CB
AgNO3 + KI  AgI + KNO3

7. Acid-base
A “Special” kind of double replacement reaction that takes place when an acid and base react with each other
Forms a salt and water
HCl + NaOH  NaCl + H2O

8. Combustion
oxygen combines with another compound to form water and carbon dioxide.
These reactions are exothermic, meaning they produce heat.
The combustion of Acetone:
C3H6O + 4 O2  3 CO2 + 3 H2O