Final Answer:
1. S + Cl₂ → SCl₂ — synthesis
2. Mg + O₂ → 2MgO — synthesis
3. CaCl₂ → Ca + Cl₂ — decomposition
4. NaOH + HCl → NaCl + H₂O — double replacement
5. 2Fe + 6HCl → 2FeCl₃ + 3H₂ — single replacement
6. CuO + H₂ → Cu + H₂O — single replacement
7. 2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂ — single replacement
8. MgSO₄ + 2KCl → K₂SO₄ + MgCl₂ — double replacement
9. SnO₂ + 2C → Sn + 2CO — single replacement
10. Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃ — double replacement
11. HgO → Hg + O₂ — decomposition (Note: needs balancing → 2HgO → 2Hg + O₂)
12. KClO₃ → KCl + O₂ — decomposition (Note: needs balancing → 2KClO₃ → 2KCl + 3O₂)
13. N₂ + 3H₂ → 2NH₃ — synthesis
14. 2NaBr + Cl₂ → 2NaCl + Br₂ — single replacement
15. Zn + 2AgNO₃ → Zn(NO₃)₂ + 2Ag — single replacement
16. Sn + 2FeCl₃ → SnCl₄ + 2FeCl₂ — single replacement
17. Ba(OH)₂ + 2HNO₃ → Ba(NO₃)₂ + 2H₂O — double replacement
Parent Tip: Review the logic above to help your child master the concept of balancing worksheet 1 answers.