题目内容
在密闭容器中进行如下反应：X 2(g)+Y 2(g) 
2Z(g)这是可逆反应，已知X 2，Y 2，Z的起始浓度分别为0.1摩尔/升，0.3摩尔/升，0.2摩尔/升，在一定条件下当反应达到平衡时，各物质浓度有可能是
2021-09-18
A.Z为0.3摩尔/升
B.Y2为0.4摩尔/升
C.X2为0.2mol/L
D.Z为0.4摩尔/升
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