试题与答案

(8分)现有9种物质:①二氧化碳 ②空气 ③氧气 ④氮气 ⑤澄清石灰水 ⑥锰酸钾

题型:填空题

题目:

(8分)现有9种物质:①二氧化碳 ②空气 ③氧气 ④氮气 ⑤澄清石灰水 ⑥锰酸钾 ⑦冰水共存物 ⑧四氧化三铁 ⑨矿泉水,其中,

⑴属于单质的是                 (填序号,下同);

⑵含有氧分子的是                 

⑶属于氧化物的是                 

⑷属于混合物的是                 

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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