TY  - BOOK
AU  - Chang, Raymond
TI  - General Chemistry: the essential concepts
SN  - 0-07-111567-6
U1  - C 540 C36g 
CY  - Boston 
KW  - Chemistry
N2  - The book is commonly perceived to be more difficult than most other subjects. there is some justification for this perception. for one thing, chemistry has a very specialized vocabulary. at first, studying chemitry is like learning a new language
ER  -