染缸里落白布:what's the ingradients in the egg shell?

来源：百度文库 编辑：高考问答 时间：2024/05/06 18:29:21

鸡蛋壳的成分是什么？
答：碳酸钙。（不好意思，碳酸钙的英文不知道怎么说）

calcium carbonate
CaCO3

CaCO3

Caco3

主要是Ca元素,含有CaCO3,但不表明他就是!

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