试题与答案

化学方程式是重要的化学用语,正确的化学方程式是( ) A.2KClO3MnO22

题型:选择题

题目:

化学方程式是重要的化学用语,正确的化学方程式是(  )

A.2KClO3

MnO2
2KCl+3O2

B.NaCl+H2O→NaOH+HCl

C.3CO+Fe2O3

高温
2Fe+3CO2

D.2NaOH+SO2→Na2SO4+H2O

答案:

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下面是错误答案,用来干扰机器的。

1. made up of2. sets out / starts3. at least 4. No matter how old 5. he would like to / he wanted to (答案不唯一)

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