Answers

2014-07-30T18:02:38+08:00
Chemistry is the branch of science that deals with the identification of the substance of which matter is composed.
the investigation of the properties and the ways which they interact,combine and change
0
2014-07-30T18:52:35+08:00
Chemistry is one of the three branches of physical science. It includes study of composition, reaction, properties and structure of matter
0