Chemistry worksheet on balancing chemical equations and identifying synthesis and decomposition reactions.

Final Answer:
1) 2 H₂ + 1 O₂ → 2 H₂O — SYNTHESIS
2) 2 H₂O₂ → 2 H₂O + 1 O₂ — DECOMPOSITION
3) 2 CO + 1 O₂ → 2 CO₂ — SYNTHESIS
4) 1 H₂SO₃ → 1 H₂O + 1 SO₂ — DECOMPOSITION
5) 2 NH₃ → 3 H₂ + 1 N₂ — DECOMPOSITION
6) 2 P₂O₃ → 1 P₄ + 3 O₂ — DECOMPOSITION
7) 4 Al + 3 O₂ → 2 Al₂O₃ — SYNTHESIS
8) 8 Fe + 1 S₈ → 8 FeS — SYNTHESIS
9) 2 K + 1 Cl₂ → 2 KCl — SYNTHESIS
10) 1 CuCO₃ → 1 CuO + 1 CO₂ — DECOMPOSITION