molecular formula

The molecular formula of a substance is the chemical formula that gives the actual number of atoms of each element in the substanc... Read more »

Empirical formula

The chemical formula of a compound gives the exact number of moles of each element which have combined to form the compound. This give... Read more »

Chemical change and Physical change

Chemical change Chemical change is any change that results in the formation of new chemical substances. Chemical change involves mak... Read more »

Introduction to Chemistry.

Chemistry is the science that deals with the composition, structure and properties of matter.Matter is the anything that ha... Read more »