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1. Cl₂ + 2Na → 2NaCl
2. 2Hg + Cl₂ → 2HgCl
3. Mg + Cl₂ → MgCl₂
4. 2Fe +3 Cl₂ → 2 FeCl₃
b)
1. 4Fe + 3O₂ → 2Fe₂O₃
2. 4P + 5O₂ → P₄O₁₀
3. S + O₂ → SO₂
4. 4As + 5O₂ → 2As₂O₅
Zad. 10
a)
1. 4Cu + O₂ → 2Cu₂O
2. 2Cu₂O + O₂ → 4CuO
3. 2CuO→ Cu + O₂
b)
1. 2Fe + O₂ → 2FeO
2. 4FeO + O₂ → 2Fe₂O₃
3. 2Fe₂O₃ → 4Fe + 3O₂
c)
1. C + O → CO₂
2. 2CO + O₂ → 2CO₂
3. CO₂ → C + O₂
d)
1. 2N₂ + O₂ → 2N₂O
2. 2N₂O + O₂ → 4NO
3. 4NO + O₂ → 2N₂O₃
4. N₂O₃ → N₂O + O₂
5. N₂O + 2O₂ → N₂O₅
6. 2N₂ + 5O₂ → 2N₂O₅
7. N₂ + O₂ → 2NO
8. 4NO → 2N₂O + O₂
9. 2N₂ + 3O₂ → 2N₂O₃
10. 2N₂ + O₂ → 2N₂O
c)
1. 4K + O₂ → 2K₂O
2. 2K + S → K₂S
3. 2K + Br₂ → 2KBr
4. 2K + Cl₂ → 2KCl