Ответ:
1) Ca + 2H2O → Ca(OH)2 + H2↑;
2) Ca(OH)2 + Na2CO3 → CaCO3↓ + 2NaOH;
3) CaCO3↓ → CaO + CO2;
4) CaO+H2SO4=CaSO4+H2O
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Answers & Comments
Ответ:
1) Ca + 2H2O → Ca(OH)2 + H2↑;
2) Ca(OH)2 + Na2CO3 → CaCO3↓ + 2NaOH;
3) CaCO3↓ → CaO + CO2;
4) CaO+H2SO4=CaSO4+H2O