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Halex
@Halex
August 2022
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Помогите решить, Химия 9 класс
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DJToxa
Verified answer
1.
2Al+3S=Al2S3
3Mg+N2=Mg3N2
Si+O2=SiO2
2.
CH4+2O2=CO2+2H2O
n(CH4)=24/16=1.5моль
n(CH4)=2*n(O2)
n(O2)=2*1.5=3моль
m(O2)=3*32=96г
Ответ:96г
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Answers & Comments
Verified answer
1.2Al+3S=Al2S3
3Mg+N2=Mg3N2
Si+O2=SiO2
2.
CH4+2O2=CO2+2H2O
n(CH4)=24/16=1.5моль
n(CH4)=2*n(O2)
n(O2)=2*1.5=3моль
m(O2)=3*32=96г
Ответ:96г