Draw a Lewis structure for the C2H6 molecule using the connectivity shown in the spacefilling model in the
window.
• Gray = C; white =H; red=0; blue=N; dark
green= Cl; brown = Br; light green=F;
purple = 1; yellow =S; orange = P.
Use your drawing to answer the following questions.
The total number of electrons in C-H bonds
The number of C-C single bonds
The number of C C double bonds =
The total number of unshared pairs
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How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

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.