Classifying Chemical
Reactions
Reaction Types
By classifying chemical reactions into several types, you can more easily
predict what products are likely to form.
Al + Fe2O3 → Fe + Al2O3
• Si
Combustion Reactions
• Is a the reaction of a carbon-based compound with oxygen.
CH4(g) + O2(g) -> CO2(g) + H2O(l)
C3H8(g) + O2(g) → CO2(g) + H2O(l)
CH3CH2OH(l) + O2(g) → CO2 + H2O
C(x)H(y) + O2(z) -> CO2 + H20
Synthesis Reactions
• Mg(s) + O2(g) → MgO(s)
• C + O2 → CO2
• A + B -> AB
Decomposition Reactions
• H2O(l) + -e -> H2(g) + O2(g)
• H202 -> H20 + 02
• AB -> A + B
Displacement Reactions
• Cu(s) + AgNO3(aq) → Ag(s) + Cu(NO3)2(aq)
Single displacement
• Mg + Pb(NO3)2 → Pb + Mg(NO3)2
• A + BX -> B + AX
Double-Displacement Reactions
• HCl(aq) + NaOH(aq) → HOH(l) + NaCl(aq)
• AX + BY -> AY + BX
•
• Balance each of the equations below, and indicate the type of
reaction for each equation.
a. Cl (g) + NaBr(aq) -> NaCl(aq) + Br (l)
b. CaO(s) + H O(l) -> Ca(OH) (aq)
c. Ca(ClO ) (s) -> CaCl (s) + O (g)
d. AgNO (aq) + K SO (aq) ->Ag SO (s) + KNO (aq)
2
2
2
3
3
2
2
2
2
4
2
2
4
3
• Predict whether a reaction would occur when the materials
indicated are brought together. For each reaction that would
occur, complete and balance the equation.
• a. Ag(s) + H O(l)
• b. Mg(s) + Cu(NO ) (aq)
• c. Al(s) + O (g)
• d. H SO (aq) + KOH(aq)
2
3
2
2
4
2
• Predict the products, write a balanced equation, and identify the
type of reaction for each of the following reactions.
• a. HgO ->
• b. C H OH + O ->
• c. Zn + CuSO ->
• d. BaCl + Na SO ->
• e. Zn + F ->
• f. C H + O ->
3
7
2
4
2
2
2
5
10
2
4