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下列物质属于纯净物的是（ ）
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下列物质中属于纯净物的是
纯净的空气
水银
稀盐酸
不锈钢
下列物质中属于纯净物的是
胆矾
水泥
纯净的盐酸
普通玻璃
下列物质属于纯净物的是
纯净的空气
稀硫酸
铜绿
氩气
下列物质中属于纯净物的是
冰水混合物
纯净的盐酸
洁净的空气
CuSO
4
溶液
下列物质属于纯净物的是属于混合物的是①纯净水②二氧化碳③正在加热的高锰酸钾④液态空气
下列各组物质中从物质分类的角度看后者从属于前者的是
纯净物、混合物
金属、非金属
纯净物、化合物
含氧酸、无氧酸
下列物质中属于纯净物的是
纯净的空气
纯净的氮气
盐酸
碘酒
下列物质属于纯净物的是
纯净的食盐水
冰水混合物
河水
清新的空气
下列物质属于纯净物的是
天然气
爆鸣气
冰水混合物
纯净的无污染的空气
下列几种物质水氧气氢气铁氯化钠海水属于混合物的是属于纯净物的是上述纯净物中属于单质的是属于化合物的是
下列物质中属于纯净物的是
18K黄金
水银
矿泉水
纯净的盐酸
下列物质中属于纯净物的是
纯净的空气
烧碱
75%的医用酒精
矿泉水
下列物质属于纯净物的是
冰水混合物
纯净的无污染的空气
天然气
碘酒
纯净物是由一种物质组成的下列物质属于纯净物的是
纯净水
纯净的空气
二氧化碳
矿石
下列物质属于纯净物的是
纯净的盐酸
冰水混合物
铝合金
净化后的空气
知道纯净物的含义是学好化学的前提下列物质一定属于纯净物的是
由同种分子构成的物质
由不同种分子构成的物质
由相同元素组成的物质
由不同种元素组成的物质
下列物质中属于纯净物的是
下列物质中前者属于纯净物后者属于混合物的是【】
医用酒精、空气
纯净水、冰水混合物
苛性钠、盐酸
黄铜、石灰石
研究物质的性质必须取用纯净物下列物质中属于纯净物的是
空气
啤酒
干冰
硬水
下列物质属于纯净物的是
米醋
洁净的空气
冰水混合物
纯净的自来水
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