4 0

Chemistry : the molicular nature of matter and change / 6 6 Silberberg, Martin S. - Fourth Edition. - - xxxi, 1077p. - - - - - . - . - 0 . - . - 0 .







5

















5





71116591

2 = =









2




2 --0------


6 --0-- 2 --------



0 2 --


--20------





--------20--


--------20--


----2

/ 2

/ 2

/

/