CuO ( Cu- ll ; O- ll )
Au2O3 ( Au- lll ; O- ll )
PbO2 ( Pb- lV ; O- ll )
AlF3 ( Al- lll ; F- l )
CaCO3 ( Ca- ll ; C- lV ; O- ll )
N2O5 ( N- V ; O- ll )
Cr2O3 ( Cr- lll ; O- ll )
Al2S3 ( Al- lll ; S- ll )
Na2O ( Na- l ; O- ll )
FeCl3 ( Fe- lll ; Cl- l )
Al4C3 ( Al- lll ; C- lV )
H3PO4 ( H- l ; P- V ; O- ll )
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Answers & Comments
CuO ( Cu- ll ; O- ll )
Au2O3 ( Au- lll ; O- ll )
PbO2 ( Pb- lV ; O- ll )
AlF3 ( Al- lll ; F- l )
CaCO3 ( Ca- ll ; C- lV ; O- ll )
N2O5 ( N- V ; O- ll )
Cr2O3 ( Cr- lll ; O- ll )
Al2S3 ( Al- lll ; S- ll )
Na2O ( Na- l ; O- ll )
FeCl3 ( Fe- lll ; Cl- l )
Al4C3 ( Al- lll ; C- lV )
H3PO4 ( H- l ; P- V ; O- ll )