Final Answer:
1. 1 Zn + 2 AgNO₃ → 1 Zn(NO₃)₂ + 2 Ag
2. 1 N₂ + 3 H₂ → 2 NH₃
3. 1 NaCl + 1 AgC₂H₃O₂ → 1 NaC₂H₃O₂ + 1 AgCl
4. 3 Mg(OH)₂ + 2 H₃PO₄ → 6 H₂O + 1 Mg₃(PO₄)₂
5. 2 HNO₃ + 1 Ni → 1 Ni(NO₃)₂ + 1 H₂
6. 1 Ba(HCO₃)₂ → 1 BaCO₃ + 1 H₂O + 1 CO₂
7. 1 BaCl₂ + 1 Na₂SO₄ → 2 NaCl + 1 BaSO₄
8. 1 Al₂(CO₃)₃ → 1 Al₂O₃ + 3 CO₂
9. 1 Ca + 2 H₂O → 1 Ca(OH)₂ + 1 H₂
10. 2 LiHCO₃ → 1 Li₂CO₃ + 1 H₂O + 1 CO₂
11. 2 N₂ + 5 O₂ → 2 N₂O₅
12. 1 MgBr₂ + 2 KOH → 2 KBr + 1 Mg(OH)₂
13. 1 Mn + 2 CuCl → 2 Cu + 1 MnCl₂
14. 8 Zn + 1 S₈ → 8 ZnS
15. 2 NaOH + 1 H₂SO₄ → 2 H₂O + 1 Na₂SO₄
16. 2 K + 2 H₂O → 2 KOH + 1 H₂
17. 1 C₅H₁₂ + 8 O₂ → 6 H₂O + 5 CO₂
18. 2 KOH + 1 H₂CO₃ → 2 H₂O + 1 K₂CO₃
19. 1 C₄H₈O₂ + 5 O₂ → 4 H₂O + 4 CO₂
20. 16 Al + 3 S₈ → 8 Al₂S₃
Types of reactions (5 main types):
1. Synthesis (Combination) — e.g., A + B → AB
2. Decomposition — e.g., AB → A + B
3. Single Replacement (Displacement) — e.g., A + BC → AC + B
4. Double Replacement — e.g., AB + CD → AD + CB
5. Combustion — e.g., fuel + O₂ → CO₂ + H₂O
Reaction types for each numbered equation:
1. Single Replacement
2. Synthesis
3. Double Replacement
4. Double Replacement (acid–base neutralization)
5. Single Replacement
6. Decomposition
7. Double Replacement (precipitation)
8. Decomposition
9. Single Replacement
10. Decomposition
11. Synthesis
12. Double Replacement (precipitation)
13. Single Replacement
14. Synthesis
15. Double Replacement (neutralization)
16. Single Replacement
17. Combustion
18. Double Replacement (neutralization)
19. Combustion
20. Synthesis
Parent Tip: Review the logic above to help your child master the concept of worksheet on balancing chemical equations.
