1/3单选题
难度：
1.在一定条件下，在一个密闭容器内发生某反应，测得反应过程中各物质的质量如下表所示，下列说法不正确的是
| A | W可能是单质 |
| B | Y可能是催化剂 |
| C | 该反应是分解反应 |
| D | 反应后Z物质的质量为86.4g |
正确答案：RA==
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
，则反应中消耗Y的质量为