Question

Расставьте коэффициенты в приведенных ниже схемах химических реакций. 1.H2CO3→H2O+CO2 2.NaNO3→NaNO2+O2 3.H2O→H2+O2 4.Mg+O2→MgO CaCO3→CaO+CO2

Answer 1

Ответ:

1. H2CO3 → H2O + CO2
2. 2NaNO3 → 2NaNO2 + O2
3. 2H2O → 2H2 + O2
4. 2Mg + O2 → 2MgO
5. CaCO3 → CaO + CO2

Answer 2

[G]

Answer 3

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