Ответ:
Объяснение:
а) C+O₂ = CO₂
CO₂+ Na₂O = Na₂CO₃
б) 2Ba+O₂ = 2BaO
BaO+H₂SO₄= BaSO₄↓+H₂O
в) NaOH +CO₂= Na₂CO₃+H₂O
Na₂CO₃+HCI=NaCI + CO₂↑ → MgCO₃
CO₂+MgO = MgCO₃
г) Fe → FeCl₃→ Fe(OH)₃ → Fe (NO₃)₃
2Fe +3CI₂= 2FeCl₃
FeCl₃+3NaOH= Fe(OH)₃+3NaCI
Fe(OH)₃+3HNO₃ = Fe(NO₃)₃+3H₂O
д) Ca → Ca(OH)₂→ CaCl₂ → CaCO₃ → CaO → Ca(NO₃)₂
Ca+2H₂O= Ca(OH)₂+H₂
Ca(OH)₂+2HCI= CaCl₂+2H₂O
CaCl₂+Na₂CO₃= CaCO₃+2NaCI
CaCO₃ +(t°C)= CaO+CO₂
CaO+2HNO₃ = Ca(NO₃)₂
+H₂O