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Ответ

Ответ дан
KristinaFabris
1)2K+O2=K2O2
2)BaCL2+ZnSO4=BaSO4+ZnCl2
3)Pt+2HBr=PtBr2+H2
4)H2O+SO2<->H2SO3(кислота слабая нестабильна)

Ответ

Ответ дан
arseniisuper97
2K+O2=K2O2
BaCl2+ZnSO4=BaSO4+ZnCl2
2HBr+Pb=PbBr2+H2
H2O+SO2=H2SO3

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