chemistry

IS MATTER AROUND US PURE?

EVERYTHING WHICH OCCUPY SPACE AND THAT HAS MASS IS CALLED MATTER.

Multiple Choice

ANYTHING THAT OCCUPIES SPACE AND THAT HAS MASS IS CALLED

• MIXTURE

• MATTER

• PURE SUBSTANCE

• ELEMENT

Open Ended

AIR IS CATERGORIZED IN WHICH KIND OF MATTER?

MATTER IS DIVIDED INTO TWO TYPES

PURE SUBSTANCE AND MIXTURES

PURE SUBSTANCE

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

PURE SUBSTANCES ARE DIVIDED INTO ELEMENTS AND COMPOUNDS

ELEMENTS

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

EG- GOLD, SILVER ETC

COMPOUNDS

ELEMENTS OF DIFFERET TYPES COMBINE TOGETHER TO FORM COMPOUNDS.

EG- CARBON DIOXIDE

MIXTURES

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

EG- AIR, MUDDYWATER ETC

MIXTURES ARE DIVIDED INTO 2

HOMOGENOUS AND HETEROGENOUS MIXTURES

HOMOGENOUS MIXTURE

ITS A MIXTURE WHICH HAS UNIFORM COMPOSITION THROUGHOUT

EG- SUGAR IN WATER

HETEROGENOUS MIXTURE

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

EG- AIR

Multiple Choice

AIR IS WHICH TYPE OF MIXTURE

• ELEMENT

• HOMOGENOUS MIXTURE

• HETEROGENOUS MIXTURE

• neither b nor c

MUDDY WATER IS CHARACTERIZED IN WHICH TYPE OF MIXTURE? WHY IS THAT SO?

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.

AIR IS HOMOGENOUS MIXTURE AS WELL AS HETEROGENOUS MIXTURE. WHY IS IT SO?

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.

Open Ended

WHY IS SUGAR SAID TO BE CATEGORIZED AS PURE SUBSTANCE? SAY IN YOUR OWN WORDS IN 1 PARAGRAPH.