Thursday, October 20, 2016

DEFINATION OF CHEMISTRY

                                                             CHEMISTRY

In about the fourth century Greek word "chemeia" first appears."Chemeia" was probably derived from the Greek word chemi which means "black".



 The Arabs later prefixed the article "al" and "alchemy" came finally to    signify the arts of chemistry in general.

Chemistry is a branch of physical science that studies the composition, structure, properties and change of matter.