化学兴趣小组在老师指导下对“蜡烛燃烧的产物 进行探究.查阅资料蜡烛的主要成分是石蜡石蜡由碳氢两种元素组成.氢氧化钙的溶解度随温度的 Template




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tomski化学兴趣小组在老师指导下对“蜡烛燃烧的产物 进行探究.查阅资料蜡烛的主要成分是石蜡石蜡由碳氢两种元素组成.氢氧化钙的溶解度随温度的 coloring