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Автор - Гераська

Расставьте коэффициенты в уравнениях
C2H4 + O2 = CO2 + H2O
Mg + O2 = MgO
P+Cl2 =PCl3
Na+Cl = NaCl
H2S+O2= S+H2O
Al+O2=Al2O3
C+H2=CH4

Ответ

Автор - NazguL68
C2H4 + 3O2 = 2CO2 + 2H2O
2Mg + O2 = 2MgO
2P + 3Cl2 = 2PCl3
Na + Cl = NaCl
2H2S + O2 = 2S + 2H2O
4Al + 3O2 = 2Al2O3
C + 2H2 = CH4

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