Zn+2HCl=ZnCl2+HCl
ZnCl2+2NaOH=Zn(OH)2+2NaCl
3...
Zn+H2SO4=ZnSO4+H2
2NaOH+2HCl=2NaCl+H2O
Cu(OH)2+2HNO3=Cu(NO3)2+2H2O
BaCl2+Na2SO4=BaSO4+2NaCl
Al(OH)3+3HCl=AlCl3+3H2O
CuSO4+2KOH=Cu(OH)2+K2SO4
CaCO3+2HCl=CaCl2+H2O+CO2
200-V
100-22,4= 200*22,4/100=44,8
Ответ: 44,8