2Cr2S3+9O2=2Cr2O3+6SO2
Cr2O3+3H2=2Cr+3H2O
4Cr+3O2=2Cr2O3
Cr2O3+6HBr=2CrBr3+3H2O
Cr2O3+CaO=Ca(CrO2)2
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2Cr2S3+9O2=2Cr2O3+6SO2
Cr2O3+3H2=2Cr+3H2O
4Cr+3O2=2Cr2O3
Cr2O3+6HBr=2CrBr3+3H2O
Cr2O3+CaO=Ca(CrO2)2