CHEM103
Fall 2020
CHEM 131
Introduction to General Chemistry
Chemistry science is that science study of matter and elements chemical, physical properties , and change in chemical, physical properties of matter.
The difference between atom and molecule that atom is the main base of matter, where molecule is combination of atoms, so combinations of atoms make molecules , for example H2 is molecule of Hydrogen gas , it is combination of two atom of Hydrogen, also Oxygen molecule O2 is combination of two atom of Oxygen gas.