Free Predicting Products of Chemical Reactions Worksheets - Free Printable

I'll work through each chemical reaction step by step, identifying the reaction type, predicting products, and balancing the equations.

Let me solve each problem:

1. Double replacement - Already completed as example: 2 AgNO₃ + CaCl₂ → 2 AgCl + Ca(NO₃)₂

2. Al + Cl₂ →
- Type: Synthesis (two elements combining)
- Products: Aluminum chloride (Al³⁺ and Cl⁻ form AlCl₃)
- Balanced: 2Al + 3Cl₂ → 2AlCl₃

3. FeCl₂ + KOH →
- Type: Double replacement
- Products: Fe(OH)₂ and KCl
- Balanced: FeCl₂ + 2KOH → Fe(OH)₂ + 2KCl

4. C₂H₄ + O₂ →
- Type: Combustion (hydrocarbon + oxygen)
- Products: CO₂ and H₂O
- Balanced: C₂H₄ + 3O₂ → 2CO₂ + 2H₂O

5. Al₂(SO₄)₃ + Pb(NO₃)₂ →
- Type: Double replacement
- Products: Al(NO₃)₃ and PbSO₄
- Balanced: Al₂(SO₄)₃ + 3Pb(NO₃)₂ → 2Al(NO₃)₃ + 3PbSO₄

6. Ba + MgI₂ →
- Type: Single replacement (Ba is more reactive than Mg)
- Products: BaI₂ and Mg
- Balanced: Ba + MgI₂ → BaI₂ + Mg

7. Ca(OH)₂ + heat →
- Type: Decomposition (heat breaks down compound)
- Products: CaO and H₂O
- Balanced: Ca(OH)₂ → CaO + H₂O

8. H₂SO + KOH →
- Type: Double replacement (acid-base neutralization)
- Products: K₂SO₄ and H₂O
- Balanced: H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

9. Zn + HCl → (Zn is 2+ ion)
- Type: Single replacement
- Products: ZnCl₂ and H₂
- Balanced: Zn + 2HCl → ZnCl₂ + H₂

10. K + Br₂ →
- Type: Synthesis
- Products: KBr
- Balanced: 2K + Br₂ → 2KBr

11. Mg + FeSO₄ →
- Type: Single replacement (Mg is more reactive than Fe)
- Products: MgSO₄ and Fe
- Balanced: Mg + FeSO₄ → MgSO₄ + Fe

12. NaOH + HCl →
- Type: Double replacement (acid-base neutralization)
- Products: NaCl and H₂O
- Balanced: NaOH + HCl → NaCl + H₂O

13. C₅H₁₂ + O₂ →
- Type: Combustion
- Products: CO₂ and H₂O
- Balanced: C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O

14. H₂CO₃ →
- Type: Decomposition
- Products: H₂O and CO₂
- Balanced: H₂CO₃ → H₂O + CO₂

15. Ca + O₂ →
- Type: Synthesis
- Products: CaO
- Balanced: 2Ca + O₂ → 2CaO

16. 2Li + Cu(NO₃)₂ →
- Type: Single replacement (Li is more reactive than Cu)
- Products: LiNO₃ and Cu
- Balanced: 2Li + Cu(NO₃)₂ → 2LiNO₃ + Cu

Final Answer:
2. Synthesis: 2Al + 3Cl₂ → 2AlCl₃
3. Double replacement: FeCl₂ + 2KOH → Fe(OH)₂ + 2KCl
4. Combustion: C₂H₄ + 3O₂ → 2CO₂ + 2H₂O
5. Double replacement: Al₂(SO₄)₃ + 3Pb(NO₃)₂ → 2Al(NO₃)₃ + 3PbSO₄
6. Single replacement: Ba + MgI₂ → BaI₂ + Mg
7. Decomposition: Ca(OH)₂ → CaO + H₂O
8. Double replacement: H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O
9. Single replacement: Zn + 2HCl → ZnCl₂ + H₂
10. Synthesis: 2K + Br₂ → 2KBr
11. Single replacement: Mg + FeSO₄ → MgSO₄ + Fe
12. Double replacement: NaOH + HCl → NaCl + H₂O
13. Combustion: C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O
14. Decomposition: H₂CO₃ → H₂O + CO₂
15. Synthesis: 2Ca + O₂ → 2CaO
16. Single replacement: 2Li + Cu(NO₃)₂ → 2LiNO + Cu