115. Calculate the mass of each of the following amounts. a. 3.00 mol of selenium oxybromide, SeoBr2
b. 488 mol of calcium carbonate, CaCO3
c. 0.0091 mol of retinoic acid, C20H2O2
d. 6.00 x 10-8 mol of nicotine, C10H14N2
e. 2.50 mol of strontium nitrate, Sr(NO3)2
f. 3.50 x 10-6 mol of uranium hexafluoride, UF6

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.

a physical change biology

explanation: