Ответ:
А) Ca+2H2O=Ca(OH)2+H2
Ca(OH)2+Na2CO3=2NaOH+CaCO3
t
CaCO3=CaO+CO2
CaO+2HNO3=Ca(NO3)2+H2O
Б) 2Li+CuS=Li2S+Cu
4Li+O2=2Li2O
Li2O+H2O=2LiOH
2LiOH+CuSO4=Li2SO4+Cu(OH)2
В) 3Mg+N2=Mg3N2
Mg+2H2O=Mg(OH)2+H2
3Mg(OH)2+2AlCl3=3MgCl2+2Al(OH)3
MgCl2+Na2SiO3=2NaCl+MgSiO3
Г) 2Al+3CuSO4=Al2(SO4)3+3Cu
Al2(SO4)3+3BaCl2=2AlCl3+3BaSO4
AlCl3+3NaOH=3NaCl+Al(OH)3
2Al(OH)3=Al2O3+3H2O
Al2O3+6HBr=2AlBr3+3H2O
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Answers & Comments
Ответ:
А) Ca+2H2O=Ca(OH)2+H2
Ca(OH)2+Na2CO3=2NaOH+CaCO3
t
CaCO3=CaO+CO2
CaO+2HNO3=Ca(NO3)2+H2O
Б) 2Li+CuS=Li2S+Cu
4Li+O2=2Li2O
Li2O+H2O=2LiOH
2LiOH+CuSO4=Li2SO4+Cu(OH)2
В) 3Mg+N2=Mg3N2
Mg+2H2O=Mg(OH)2+H2
3Mg(OH)2+2AlCl3=3MgCl2+2Al(OH)3
MgCl2+Na2SiO3=2NaCl+MgSiO3
Г) 2Al+3CuSO4=Al2(SO4)3+3Cu
Al2(SO4)3+3BaCl2=2AlCl3+3BaSO4
AlCl3+3NaOH=3NaCl+Al(OH)3
t
2Al(OH)3=Al2O3+3H2O
Al2O3+6HBr=2AlBr3+3H2O