文峰中学第一化学实验小组从桃花山山上采集到一种石灰石这种石灰石主要成为为碳酸钙.于是他们取80克该样品进行煅烧实验所含杂质在煅烧过程中不 Template




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tomski文峰中学第一化学实验小组从桃花山山上采集到一种石灰石这种石灰石主要成为为碳酸钙.于是他们取80克该样品进行煅烧实验所含杂质在煅烧过程中不 coloring