SYNTHETIC FIBERS AND PLASTICS     

                     METALS  AND NON- METALS metal

                            COAL

                     COMBUSTION AND FLAME    

INTRODUCTION: (Change of state of matter)Substances undergo a wide variety of changes. Many changes take

INTRODUCTION:  Three main inorganic or mineral acids are HYDROCHORIC ACID, NITRIC ACIDS, SULPHURIC ACID.Acids were

The material of which the universe is composed is called matter. Matter may be defined