Учший!<span>FeS+2HCl = H2S+FeCl2
FeCl3 + LiOH = FeOH3+LiCl2
2HCl + СаСО3 = СаCl2 + СО2↑ + Н2О
H2SO4+2 RbOH = RbSO4 + 2 H2O
ZnCl2+CuSO4=Zn2SO3+CuCl
BaCl2+2NaNO3 = 2NaCl+Ba(NO3)2
3Ca(OH)2+2H3PO4=Ca3(PO4)2+6H2O
H2S + Pb(CH3COO)2=PbS+CH3COOH
FeSO4 + Ba(NO3)2 = Fe (NO3)2 + BaSO4
2NaOH+N2O3=2NaNO2+H2O</span>
Решение задач во вложении
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w=5/35=0.143 14.3%
2С2H5OH+2Na= 2C2H5ONa+H2
CH3OH+HBr= CH3Br+H2O