Ответ:
4Al + 3O₂ → 2Al₂O₃
2Na + Cl₂ → 2NaCl
2Ba + O₂ → 2BaO
4K + O₂ → 2K₂O
CaO + 2HCl = CaCl₂+H₂O
Na₂O + H₂O = 2NaOH
1) ²Al²O³
2) ²BaO
3) ²NaOH
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Ответ:
4Al + 3O₂ → 2Al₂O₃
2Na + Cl₂ → 2NaCl
2Ba + O₂ → 2BaO
4K + O₂ → 2K₂O
CaO + 2HCl = CaCl₂+H₂O
Na₂O + H₂O = 2NaOH
Ответ:
1) ²Al²O³
2) ²BaO
3) ²NaOH