็ ๅ†œไบบ็”Ÿ - Click This Link http://dzone.zijinshi.org/story.php?title=click-this-link-133 The bar we utilize to wash ourselves everyday known as soap is in fact a salt metal antacids (such as sodium hydroxide that combines with various other chemicals called fatty carboxylic acids. The interaction of these chemicals planned of soap is called saponification. Sun, 15 Apr 2018 22:54:52 UTC en