Advanced Theories Of Covalent Bonding

Question 1

How are pi bonds characterized

Answer 1

side-to-side overlap

Question 2

When there are multiple bonds how many are sigma bonds and how many are pi?

Answer 2

One of the bonds is sigma and the rest are pi

Question 3

How are sigma bonds characterized

Answer 3

Head-head overlap

Question 4

What angle and hybridization is linear

Answer 4

180 degrees, sp hybridization

Question 5

Trigonal planar angle and hybridization

Answer 5

120 degrees, sp^2

Question 6

Tetrahedral angle and hybrization

Answer 6

109.5 degrees, sp^3

Question 7

What happens to lattice energy when Q1 x Q2 increases?

Answer 7

Lattice energy increases

Question 8

Is breaking bonds an exothermic process or endothermic process? And would the value of H be - or +

Answer 8

Breaking bonds takes up energy so the H value is positive. It is an endothermic process

Question 9

When forming chemical bonds is it an exothermic or endothermic process? And is the H value + or -

Answer 9

Forming chemical bonds releases energy so the H value is negative. It’s an exothermic process

Question 10

Bond enthalpy

Answer 10

How much energy is required to break a bond

Question 11

First ionization energy trend

Answer 11

Increases as you go up and right on the periodic table

Question 12

Sp^3d

Answer 12

Trigonal bipyramidal

Question 13

Sp^3d^2

Answer 13

Octahedral