借助酚酞试液可完成稀盐酸、NaCl溶液、NaOH溶液、K2CO3（
侯英超 |
发布日期：2010-06-22 05:18:46
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下列认识或做法中，正确的是 A. 借助酚酞试液可完成稀盐酸、NaCl溶液、NaOH溶液、K2CO3（草木灰的主要成分）溶液间的鉴别 B. 铁能和稀硫酸、CuSO4溶液、Cu(OH)2发生置换反应 C. NaOH能和盐酸、CuSO4溶液、K2SO4溶液反应 D. 用过量的CuO提纯混有盐酸的CaCl2溶液 |
