What is the difference between a compound and a mixture? (plz dont guess) a) a mixture is a pure substance, but a compound is not. b) mixtures are chemically combined, but compounds are not. c) you cannot separate mixtures, but you can separate compounds. d) a compound is a pure substance, but a mixture is not.

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

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.

One similarity and one difference between an element and a mixture of elements