Составить уравнения, 1)na-na2o2-na2o-naoh-na2so4 2)ca-cao-ca(oh)2-ca(no3)2-caco3

1) Na → Na₂O₂ → Na₂O → NaOH → Na₂SO₄

1. 2Na + O₂ → Na2O2

2. Na₂O₂ + 2Na → 2Na₂O

3. Na₂O + H₂O → 2NaOH

4. 2NaOH + H₂SO₄ → Na₂SO₄ + H₂O

2) Ca → CaO → Ca(OH)₂ → Ca(NO₃)₂ → CaCO₃

1. 2Ca + O₂ → 2CaO

2. CaO + H₂O → Ca(OH)₂

3. Ca(OH)₂ + 2HNO₃ → Ca(NO₃)₂ + H₂O

4. Ca(NO₃)₂ + H₂CO₃ → 2HNO₃ + CaCO₃