8.Calculate the volume of nitrogen dioxide (NO2) that is formed when 3dm3 of dintrogen tetroxide (N2O4) decomposes with the volume of both gases measured at rtp: N2O4 > 2NO2

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

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.

Which of the following is not true about the atomic model of substances?