Cr(NO3)3
because Chromium (III) formula is Cr2O3 And Nitrate formula is NO3
Actually for this question answer is Acid. but to know more accurately..... comment !
Percent composition by mass of oxygen =
((16.0*6)/(40.1+2*(14.0+16.0*3)))*100%
= 58.5%
therefore, the answer is D
Similarities. very useful
differences. coal is a pullutant. while womd is not. i guess
