Answer:
1. Skeleton: Ca + H₂O ⇒ H₂ + Ca(OH)₂
Balanced: Ca + 2H₂O ⇒ H₂ + Ca(OH)₂
Type: Single displacement / single replacement
2. Skeleton: Al + O₂ ⇒ Al₂O₃
Balanced: 4Al + 3O₂ ⇒ 2Al₂O₃
Type: Synthesis
3. Skeleton: H₂SO₄ + NaOH ⇒ Na₂SO₄ + H₂O
Balanced: H₂SO₄ + 2NaOH ⇒ Na₂SO₄ + 2H₂O
Type: Double displacement / double replacement
4. Skeleton: NaClO₃ ⇒ NaCl + O₂
Balanced: 2NaClO₃ ⇒ 2NaCl + 3O₂
Type: Decomposition
5. Skeleton: AgNO₃ + K₃PO₄ ⇒ Ag₃PO₄ + KNO₃
Balanced: 3AgNO₃ + K₃PO₄ ⇒ Ag₃PO₄ + 3KNO₃
Type: Double displacement / double replacement
6. Skeleton: Cu(OH)₂ + Al ⇒ Al(OH)₃ + Cu
Balanced: 3Cu(OH)₂ + 2Al ⇒ 2Al(OH)₃ + 3Cu
Type: Single replacement / single displacement
7. Skeleton: Mg + P₄ ⇒ Mg₃P₂
Balanced: 6Mg + P₄ ⇒ 2Mg₃P₂
Type: Synthesis
8. Skeleton: KNO₃ + PbI₂ ⇒ KI + Pb(NO₃)₂
Balanced: 2KNO₃ + PbI₂ ⇒ 2KI + Pb(NO₃)₂