判断KCl、NaCl、CaO、BaO四种离子晶体的熔点高低顺序(  )。A.KC

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问题 判断KCl、NaCl、CaO、BaO四种离子晶体的熔点高低顺序(  )。A.KCl>NaCl>BaO>CaOB.NaCl>KCl>CaO>BaOC.CaO>BaO>NaCl>KClD.CaO>BaO>KCl>NaCl

选项 A.KCl>NaCl>BaO>CaO
B.NaCl>KCl>CaO>BaO
C.CaO>BaO>NaCl>KCl
D.CaO>BaO>KCl>NaCl

答案 C

解析
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