in your own words define the following terms physical change . chemical change , and law of conservation of mass..

not clear

the atomic mass is the bottom number on the element.

-steel jelly

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

the right answer is c i just did the question.