Some basic concepts of chemistry

, ↓ The branch of Science that studies the preparation properties
, ,
structure and


of material called
reactions substances is
Chemismy
.


2.
Cisplashin and taxol are effective in Cancer therapy


.
3 DZT
(Azidothymidine) is used for helping AIDS patient .




.
4
Anything which has mass and occupies space is called matter .




Solid , heat Liquid,heata




.
5
Physical properties can be measured or observed without
changing the identity or the



of . The
the Substance observation of chemical properties
composition measurement or




requires Chemical
change to occur .