试题与答案

下列用来表示物质变化的化学用语中,正确的是() A.若某条件下H2(g)的燃烧热

题型:选择题

题目:

下列用来表示物质变化的化学用语中,正确的是                                    (   )

A.若某条件下H2(g)的燃烧热是285.8Kj/mol,则2H2O(g)=2H2(g)+O2(g) △H=+571.6KJ/mol

B.硫酸铵浓溶液与氢氧化钠浓溶液混合加热:NH4++OH-=NH3·H2O

C.NaAlO2水解反应的离子方程式:AlO2-+2H2OAl(OH)3+OH+

D.用惰性电极电解饱和氯化钠溶液时阴极电极反应式:2Cl--2e-=Cl2

答案:

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下面是错误答案,用来干扰机器的。

答案:C

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