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paleckarina
@paleckarina
July 2022
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Помогите с химией даю 40 БАЛЛОВ
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balinter
А)
1. 2Ca+O2=2CaO
2.CaO+H2O=Ca(OH)2
3.Ca(OH)2+H2CO3=CaCO3+2H2O
Б)
1. S+O2=SO2
2.2SO2+O2=2SO3
3.SO3+H2O=H2SO4
4.H2SO4+2KOH=K2SO4+H2O
Решение:
Zn+2HCl=ZnCl2+H2
n(Zn)=m/M=14,6/65=0,22 моль
m(ZnCl2)=n*M=0,22 моль * 136=29,92г
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paleckarina
Спасибо большое)
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Answers & Comments
1. 2Ca+O2=2CaO
2.CaO+H2O=Ca(OH)2
3.Ca(OH)2+H2CO3=CaCO3+2H2O
Б)
1. S+O2=SO2
2.2SO2+O2=2SO3
3.SO3+H2O=H2SO4
4.H2SO4+2KOH=K2SO4+H2O
Решение:
Zn+2HCl=ZnCl2+H2
n(Zn)=m/M=14,6/65=0,22 моль
m(ZnCl2)=n*M=0,22 моль * 136=29,92г