试题与答案

将晶体X加热分解,可得A、B、D、E、F和水六种产物,其中A、B、D都是中学化学

题型:填空题

题目:

将晶体X加热分解,可得A、B、D、E、F和水六种产物,其中A、B、D都是中学化学中常见的氧化物,气体E是单质F所含元素的氢化物。

(1)A能溶于强酸、强碱,写出A与强碱溶液反应的离子方程式_______________。

(2)B、D都是酸性氧化物且组成元素相同,D溶于水得强酸,则B、D分子中除氧元素外所含另一种元素在周期表中的位置是_______________。

(3)E能使湿润的红色石蕊试纸变蓝,实验室制取E气体的化学方程式为________________,制得的气体可用如图所示装置收集,则气体应从_______(填“A”或“B”)通入。

(4)由各分解产物的物质的量之比推测X的组成类似于明矾,则其化学式为___________,若向X的浓溶液中滴加浓NaOH溶液至过量,现象依次为_______________     、___________      _、

_____________          。

(5)取一定量的X晶体分解,若生成F 1 mol,则必同时生成______物质_____   mol。

答案:

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参考答案:锁和钥匙学说

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A.How to say English correctly and properly.
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D.What people mean when they use some proverbs.
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C.he “ fill their shoes”.
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D.“Cool! You are truly a stuffed shirt”.
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