在某化学反应 2XY + Y2 == 2Z中,Z物质的化学式符合(     ) A、XY2   

在某化学反应 2XY + Y2 == 2Z中,Z物质的化学式符合(     )

AXY2        BX2Y         CX2Y2         DX3Y2

答案

A

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