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在实验室,有一瓶失去标签的蒸馏水和一瓶失去标签的氯化钾溶液,
在实验室,有一瓶失去标签的蒸馏水和一瓶失去标签的氯化钾溶液,
在实验室,有一瓶失去标签的蒸馏水和一瓶失去标签的氯化钾溶液,鉴别它们的正确方法是
(
)
A
.尝液体的味道
B
.蒸发液体看是否结晶
C
.加入白色硫酸铜粉末
D
.看颜色
答案
B
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