chemistry

PURE SUBSTANCE AND MIXTURES

IT CONSIST OF ONLY ONE KIND OF ATOM AS WELL AS MATTER AND FURTHER CANNOT BE DIVIDED INTO SIMPLER SUBSTANCES.

THESE ARE THE PURE SUBSTANCES WHICH CANNOT BE DIVIDED FURTHER AND WHICH CONSIST OF ONLY ONE KIND OF ATOM

EG- GOLD, SILVER ETC

ELEMENTS OF DIFFERET TYPES COMBINE TOGETHER TO FORM COMPOUNDS.

EG- CARBON DIOXIDE

THESE ARE A KIND OF MATTER WHICH CAN BE FURTHER DIVIDED INTO SMALLER PARTICLES.

EG- AIR, MUDDYWATER ETC

HOMOGENOUS AND HETEROGENOUS MIXTURES

ITS A MIXTURE WHICH HAS UNIFORM COMPOSITION THROUGHOUT

EG- SUGAR IN WATER

ITS A MIXTURE WHICH HAS PHYSICALLY DISTINCT PARTS AND NON UNIFORM COMPOSITION THROUGHOUT.

EG- AIR

HETEROGENOUS MIXTURE BECAUSE IN MUDDY WATER THERE ARE LOTS OF MATERIALS LIKE HUMUS, CLAY, SAND ETC WHICH MIX TOGETHER TO FORM A MUDDY WATER WHICH IS ALSO COMBINED WITH WATER.

BECAUSE THERE ARE LOTS OF GASES PRESENT IN AIR WHICH ARE NOT SEPERATED AND STAND TOGETHER . THATS WHY AIR IS CATEGORIZED IN BOTH OF THE MIXTURES.