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fallow116
@fallow116
July 2022
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напишите уравнения реакций с помощью которых можно осуществить превращения
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milka117
))))))))))))))))))))))))))***
0 votes
Thanks 1
MMort78
A)
1)3Mg+2P=Mg3P2
2)4P+5O2=2P2O5
3)P2O5+3H2O=2H3PO4
4)3NaOH+H3PO4=3H2O+Na3PO4
5)2P2O5+6CaO=2Ca3(PO4)2
6)Ca3(PO4)2+6H2O=3Ca(OH)2+H2+O2+2H3PO4(электролиз)
Б)
1)3H2+N2=2NH3
2)4NH3+3O2=2N2+6H2O
3)N2+3Ca=Ca3N2
4)2NH3+H3PO4=(NH4)2HPO4
5)NH3+H2O=NH4OH
6)NH3+H3PO4=NH4H2PO4
В)
1)S+O2=SO2
2)2SO2+O2=2SO3
3)SO3+H2O=H2SO4
4)H2+S=H2S
5)2KOH+H2S=2H2O+K2S
6)K2S+Pb(NO3)3=2KNO3+PbS
Г)
1) CH4+2O2=2H2O+CO2
2)CO2+Ca(OH)2=CaCO3+H2O
3)CaCO3+H2O+CO2=Ca(HCO3)2
4)2NaOH+CO2=Na2CO3+H2O
5)Na2CO3+Ca(NO3)2=2NaNO3+CaCO3
6)CaCO3=CaO+CO2
1 votes
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Answers & Comments
1)3Mg+2P=Mg3P2
2)4P+5O2=2P2O5
3)P2O5+3H2O=2H3PO4
4)3NaOH+H3PO4=3H2O+Na3PO4
5)2P2O5+6CaO=2Ca3(PO4)2
6)Ca3(PO4)2+6H2O=3Ca(OH)2+H2+O2+2H3PO4(электролиз)
Б)
1)3H2+N2=2NH3
2)4NH3+3O2=2N2+6H2O
3)N2+3Ca=Ca3N2
4)2NH3+H3PO4=(NH4)2HPO4
5)NH3+H2O=NH4OH
6)NH3+H3PO4=NH4H2PO4
В)
1)S+O2=SO2
2)2SO2+O2=2SO3
3)SO3+H2O=H2SO4
4)H2+S=H2S
5)2KOH+H2S=2H2O+K2S
6)K2S+Pb(NO3)3=2KNO3+PbS
Г)
1) CH4+2O2=2H2O+CO2
2)CO2+Ca(OH)2=CaCO3+H2O
3)CaCO3+H2O+CO2=Ca(HCO3)2
4)2NaOH+CO2=Na2CO3+H2O
5)Na2CO3+Ca(NO3)2=2NaNO3+CaCO3
6)CaCO3=CaO+CO2