Trộn lẫn 100ml dung dịch Ba(OH)2 1M với 100ml dung dịch Al2(SO4)3 0,2M, khuấy đều cho phản ứng xảy ra hoàn toàn thu được x gam kết tủa và dung dịch A. Sục CO2 dư vào A thu được y gam kết tủa. Giá trị của x và y

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Once similarity and one difference between a mixture of elements and a mixture of compounds