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（浙江选考）2020版高考化学大一轮复习第3讲元素化学考点20氮及其氧化物习题课件.ppt

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考点20 氮及其氧化物,游离态的氮,化合态的氮,氮的固定,难,无色,红棕色,用水洗法,B,187,437,

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