配套习题-质量守恒定律 -【青果学院】

本课配套习题挑战模式1/3

返回课程

单选题

难度系数：

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

提示1：5qC55o2u6LSo6YeP5a6I5oGS5a6a5b6L77yM5Y+C5Yqg5Y+N5bqU5YmN5ZCE54mp6LSo55qE6LSo6YeP5oC75ZKMPeWPjeW6lOWQjueUn+aIkOWQhOeJqei0qOeahOi0qOmHj+aAu+WSjO+8jOe7k+WQiOihqOagvOS4reeahOaVsOWAvO+8jOWImeW+hea1i+WAvO+8m+S7juiAjOWIpOaWreWPjeW6lOeJqe+8jOeUn+aIkOeJqe+8m+WGjeWIpOWumuWPjeW6lOexu+Wei++8m+aOjOaPoeWCrOWMluWJgueahOKAnOS4gOWPmOS6jOS4jeWPmOKAneeahOeJueeCue+8jg==
答案：RA==
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

返回课程

单选题

难度系数：

2.把一定质量的a，b，c，d四种物质放入一密闭容器中，在一定条件下反应一段时间后，测得反应后各物质的质量如下，下列说法中正确的是

A: a和c是反应物

B: d一定是催化剂

C: X=2.0

D: 该反应是化合反应

提示1：5qC55o2u6LSo6YeP5a6I5oGS5a6a5b6L77yM5Zyo5YyW5a2m5Y+N5bqU5Lit77yM5Y+C5Yqg5Y+N5bqU5YmN5ZCE54mp6LSo55qE6LSo6YeP5oC75ZKM562J5LqO5Y+N5bqU5ZCO55Sf5oiQ5ZCE54mp6LSo55qE6LSo6YeP5oC75ZKM77yO5Y+N5bqU5ZCO6LSo6YeP5aKe5Yqg55qE5piv55Sf5oiQ54mp77yM5YeP5bCR55qE5piv5Y+N5bqU54mp
提示2：5Y+N5bqU6Iul56ym5ZCI4oCc5aSa5Y+Y5LiA4oCd55qE54m554K577yM5YiZ5Li65YyW5ZCI5Y+N5bqU44CC
答案：RA==
QeOAgeeUseihqOagvOS/oeaBr+WSjOWIhuaekOWPr+efpeWPjeW6lOeJqeaYr2Hlkoxi77yb5pWFQemUmeivr++8mzxicj5C44CBZOi0qOmHj+S4jeWPmO+8jOWBmuWCrOWMluWJguaIluiAheaYr+adgui0qO+8jOaVhULplJnor6/vvJs8YnI+Q+OAgWLmmK/lj43lupTnianvvIzlj43lupTlkI7nianotKhi55qE6LSo6YeP5Li6My4yZ++5ozJnPTEuMmfvvIzmlYVD6ZSZ6K+v77ybPGJyPkTjgIHnlLHliIbmnpDlj6/nn6Xlj43lupTnianmmK9h5ZKMYu+8jOeUn+aIkOeJqeaYr2PvvIzlj43lupTnrKblkIjigJzlpJrlj5jkuIDigJ3nmoTnibnngrnvvIzkuLrljJblkIjlj43lupTvvIzmlYVE5q2j56Gu77ybPGJyPuaVhemAiUTvvI4=

返回课程

单选题

难度系数：

3.已知：X和Y两种物质共80g，在一定条件下恰好完全反应，生成Z与W的质量比为11：9，且反应中消耗X的质量是生成W的质量的

，则反应中消耗Y的质量为

A: 16g

B: 36g

C: 44g

D: 64g

提示1：5qC55o2u6LSo6YeP5a6I5oGS5a6a5b6L5Y+v55+l5Y+C5Yqg5YyW5a2m5Y+N5bqU55qE5ZCE54mp6LSo6LSo6YeP5oC75ZKM562J5LqO5Y+N5bqU5ZCO55Sf5oiQ55qE5ZCE54mp6LSo6LSo6YeP5oC75ZKM77yM5Y2z5Y+C5Yqg5Y+N5bqU55qEWOWSjFnnmoTotKjph4/lkozot5/nlJ/miJBa5ZKMV+eahOi0qOmHj+WSjOebuOetie+8jg==
答案：RA==
55Sx6LSo6YeP5a6I5oGS5a6a5b6L77yMWOWSjFnkuKTnp43nianotKjlhbE4MGfvvIzliJnnlJ/miJBa5ZKMV+WFsTgwZ++8jOiAjFrjgIFX5Lik54mp6LSo5a6M5YWo5Y+N5bqU5pe255qE6LSo6YeP5q+U5Li6MTHvvJo577yM5pWF5Y+N5bqU55Sf5oiQV+eahOi0qOmHj+aYr++8mjgwZ8OXPGltZyB3aWR0aD0xMiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9EMC9ENy9yQkFDSmxaTmVIcWdsanhmQUFBQlFSMFRIcHMzNDYucG5nIj49MzZn77yM5Y+N5bqU5Lit5raI6ICXWOeahOi0qOmHj+aYr++8mjM2Z8OXPGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0QwL0Q3L3JCQUNKbFpOZUhyZ1lCTzFBQUFCTGwzZjhmODk5My5wbmciPj0xNmfvvIzliJnlj43lupTkuK3mtojogJdZ55qE6LSo6YeP5Li677yaODBn77mjMTZnPTY0Z++8jjxicj7mlYXpgIlE77yO