1. Расставьте коэффициенты в уравнениях реакций.



А) Na + O2 = Na2O2

Б) CO + O2 = CO2

В) CaC2 + O2 = CaO + CO2

Г) C2H6 + O2 = CO2 + H2O

А) Fe + O2 = Fe3O4

Б) NO + O2 = NO2

В) Al2S3 + O2 = Al2O3 + SO2

Г) CH4 + O2 = CO2 + H2O​
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