Write the reaction equation: Cu → CO2 → Na2CO3 → CO2 → CaCO3
| August 12, 2021 | education
1) Cu + H2CO3 → CuO + CO2↑ + H2↑;
2) CO2 + Na2O → Na2CO3;
3) Na2CO3 + 2HF → 2NaF + H2O + CO2↑;
4) CaS + CO2 + H2O → CaCO3↓ + H2S↑.
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