1. By Alex R.

2.  A sample of pure element contains atoms that are chemically the same  A mixture is putting things together that can be separated again  Elements combined to form compounds

3.  The tendency of an atom to combined is a chemical property  Ordinary matter is made of small particles called atoms  Atoms of the same element have the same average masses

4.  The word physical in the term physical chemistry means physics  Physical chemistry uses physics to study chemical problems  Other names for physical chemistry are chemical physics

5.  To become a chemist you have to get a masters degree as a scientist  Then get a job as a chemist

6. http://discoverer.prod.sirs.com/discoweb/disco/do/ article?urn=urn%3Asirs%3AUS%3BARTICLE%3 BART%3B0000321136 http://discoverer.prod.sirs.com/discoweb/disco/do/ article?urn=urn%3Asirs%3AUS%3BARTICLE%3 BART%3B0000321136