Вариант 2
1. а-H3PO4,H2SO3
б-Zn(OH)2,NaOH
в-CO2,CaO
г-Al(NO3)3,K2CO3
2. HCl,Cu(OH)2,K2SO4,Ca3(PO4)2,Na2O,AlCl3
3.S+H2=H2S
2S+3O2=2SO3
SO3+Na2O=Na2SO4
SO3+H2O=H2SO4
H2So4+2KOH=K2SO4+H2O
4.NaOH,CaO,AgNo3
HCl+NaOH=NaCl+H2O
2HCl+CaO=CaCl2+H2O
HCl+AgNO3=AgCl+HNO3
Вариант 3
1. а-H2SO4,HNO3
б-Fe(OH)3,Al(OH)3
в-SiO2,Na2O
г-KCl,Na2SO4
2. H2CO3,NaOH,ZnSO4,Na3PO4,Al2O3,CaCl2
3. 2K+2H2O=2KOH+H2
4K+O2=2K2O
3K2O+P2O5=2K3PO4
K2O+H2O=2KOH
KOH+H2SO4=K2SO4+H2O
4. HNO3,P2O5,CuCl2
NaOH+HNO3=NaNO3+H2O
6NaOH+P2O5=2Na3PO4+3H2O
2NaOH+CuCl2=Cu(OH)2+2NaCl