Fe(s) reacts with O2(g) to produce iron(III) oxide. Consider the reaction of 0.626 mol Fe with 19.20 g O2 to produce iron(III) oxide.
(i) What is the name of this reaction?
(ii) When the reaction is complete (finished), what mass of Fe remains unreacted?
(iii) When the reaction is complete (finished), how many molecules of O2 remain unreacted?

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

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 description best characterization the motion of particles in a solid