下列物质中,既含有离子键又含有共价键的是?
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Correct answer
A. NaOH
Principle or equation
离子键存在于离子化合物中,共价键存在于非金属原子间。NaOH 中 Na+ 与 OH- 之间为离子键,OH- 内部 O-H 为共价键。
Why this answer is correct
NaOH 是离子化合物,Na+ 与 OH- 间是离子键,OH- 内 O 与 H 间是共价键。NaCl 只含离子键。H2O 和 HCl 只含共价键。
Example
KOH 也既含离子键又含共价键。
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