✔ 最佳答案
以雞蛋殼消失於白醋的實驗展示酸能腐蝕含有碳酸鈣的物質。
用一些帶有酸性的液體,較為常用的是醋(白醋)。只要把雞蛋浸於醋裡,一兩天後雞蛋殼便完全消失。雞蛋殼含有碳酸鈣,而酸會腐蝕碳酸鈣,使雞蛋殼溶於帶有酸性的醋中。
Egg shell is made of calcium carbonate and acid (Acetic Acid / Ethanoic Acid) (weak acid) will slowly dissolve the calcium carbonate, and make the egg shell free, as a no shell egg or soft shell egg.
醋 Acetic Acid / Ethanoic Acid CH3COOH
碳酸鈣 Calcium Carbonate CaCO3
CH3COOH --> CH3COO- + H+
CaCO3 + 2 CH3COO- + 2 H+ --> Ca(CH3COO)2 + CO2 + H2O