Rozwiąż równania:
Fe(OH)2+HBr--->
Pb(NO2)2+Ag2SO4-->
H2CO3+NaOH--->
P2O5+Li2O--->
Cl2O5+H2O--->
HF+Pb2O--->
HClO4+Ba(OH)2--->
H2S+LiOH--->
K2O+H3PO4-->
Sr(OH)2+Li2CO3-->
Fe2O3+SO3--->
Rb2O+H2O--->
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Fe(OH)2+2HBr--->FeBr2+2H2O
Pb(NO2)2+Ag2SO4-->PbSO4[strzałka w dół] + 2AgNO2
H2CO3+2NaOH--->Na2CO3+2H2O
P2O5+3Li2O--->2Li3PO4
Cl2O5+H2O--->2HClO3
HF+Pb2O--->nie ma takiego związku jak Pb2O
2HF+PbO-->PbF2+H2O
2HClO4+Ba(OH)2--->Ba(ClO4)2+2H2O
H2S+2LiOH--->Li2S+2H2O
3K2O+2H3PO4-->2K3PO4+3H2O
Sr(OH)2+Li2CO3-->SrCO3[strzałka w dół]+2LiOH
Fe2O3+3SO3--->Fe2(SO4)3
Rb2O+H2O--->2RbOH