Zn(CH3COOH)?
醋酸锌为Zn(CH3COO)2啊……
H2S=H2+S
2Zn+O2=2ZnO
S+Pb=PbS
其他看不懂了……
醋酸根为C2H3O2,它显+1价
P2O5+3H2O=2H3(PO4)2
2H3(PO4)2+3Zn(C2H3O2)2=Zn3(PO4)2+6CH3COOH
Pb(CH3COO)2+H2S=2CH3COOH+PbS