试题与答案

硫酸镁又名泻盐,是一种重要的无机化工产品,用途十分广泛。某化工厂从该厂的工业废渣

题型:填空题

题目:

硫酸镁又名泻盐,是一种重要的无机化工产品,用途十分广泛。某化工厂从该厂的工业废渣(主要成分是MgCO3,另外还有CaCO3、SiO2等杂质)中提取回收MgSO47H2O的主要工艺流程如下。

请仔细阅读所给内容,回答下列问题。

(1)滤渣B的主要成分的化学式为__________。

(2)操作I的名称是__________,如何检验滤渣A已经洗涤干净:_____________。

(3)写出废渣与稀硫酸反应的化学方程式___________。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A, B, C, E解析:本题考核税务行政处罚。责令限期改正是一种行政命令,而不是税务行政处罚。所以选项A、C错误。税务行政处罚听证程序的适用范围包括对公民作出2000元以上(含本数)的罚款、对法人或...

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B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

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D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

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