10/23 notes

Question 1

what happens every time you draw a resonance structure

Answer 1

you stabilize it

Question 2

what decreases with bond multiplicity

Answer 2

bond length

Question 3

what happens to bond length as the difference in electronegativity increases

Answer 3

bond length decreases

Question 4

what does bond length follow

Answer 4

the size of the atom

Question 5

smaller atoms means

Answer 5

shorter bonds

Question 6

what are the priorities for arguing bond length

Answer 6

1)size
2)multiplicity
3)polarity

Question 7

for bond energies, which bonds are strong from most strong to least strong

Answer 7

triple bonds are stronger than double bonds, which are stronger than single bonds (shorter bonds are stronger bonds and vice versa)

Question 8

are polar bonds or non polar bonds strong

Answer 8

polar bonds because of electrostatic attraction

Question 9

what happens to overlap as size increases

Answer 9

poorer overlap between orbitals forming covalent bonds and therefore, gets weaker

Question 10

which compounds are anomalously weak because of Pauli repulsion between lone pairs

Answer 10

N-N, O-O, F-F

Question 11

what are the priorities for bond energies

Answer 11

1)multiplicity
2)size/polarity