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> 【题文】乙酸（CH 3COOH）是食醋的有效成分。下列关于乙酸的说法，正确的是 A．乙酸由4种元素组成 B．一个乙酸分子中含有8个原子 C．乙酸分子的相对分子质量为60 g D．乙酸分子中碳元素与氧元素的质量比4:3

问题：

发布时间：2024-09-08

【题文】乙酸（CH ₃COOH）是食醋的有效成分。下列关于乙酸的说法，正确的是

A．乙酸由4种元素组成

B．一个乙酸分子中含有8个原子

C．乙酸分子的相对分子质量为60 g

D．乙酸分子中碳元素与氧元素的质量比4:3

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