1) element x has a nucleon (mass) number of 19 and a proton (atomic) number of 9.
to which gro...
Chemistry, 20.12.2019 17:31 damilysgonzalez2
1) element x has a nucleon (mass) number of 19 and a proton (atomic) number of 9.
to which group in the periodic table does it belong?
a) 1 b) 3 c) 7 d) 0
Answers: 1
Chemistry, 21.06.2019 18:30
Which orbitals form a pi bond? a.the s orbital and three p orbitals b.the s orbital and two p orbitals c.overlapping p orbitals d.overlapping hybrid orbitals
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In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2
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Chemistry, 22.06.2019 14:00
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.
Answers: 3
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