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Автор - sasagolyakov

Расставьте коэффициенты
Cu+O2
Mg+HCl=MgCl+H2
Al(OH)3=Al2O3+H2O
Na+S=Na2S
Al+S=Al2S3

Ответ

Автор - mihabragin732
2Cu+O2= 2CuO. 2 Mg+2HCl= 2MgCl+H2. 2Al(OH)3= Al2O3+3H2O. 2Na+S =Na2S. 2Al+3S=Al2S3

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