Read the following chemical equations.
reaction 1: h2s+cl-> 2hcl+s
reaction 2: fe+s-> fes
which of the following statements if true for both the chemical equations?
a) chlorine is reduced in reaction 1 and iron is reduced 2
b) chlorine is oxidized in reaction 1 and iron is oxidized in reaction 2
c) chlorine is oxidized in reaction 1 and iron is reduced in reaction 2
d) chlorine is reduced in reaction 1 and iron is oxidized in reaction 2

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.