Bonding

Question 1

Solid lubricant

Answer 1

Weak intermolecular forces between layers, allowing them to slide

Question 2

When discussing substances

Answer 2

Name the bonding present

Question 3

Manganate ions

Answer 3

MnO4-

Question 4

Electric field

Answer 4

Only accelerates charged particles

Question 5

Drawing ions

Answer 5

Charge allows you to add/remove electrons

Question 6

Electronegativities

Answer 6

Compare the electronegativity of the atoms - what is the difference between them?

Question 7

Minimising repulsion

Answer 7

Electron pairs repel

Question 8

Drawing hydrogen bonding

Answer 8

Remove the hydrogen
Show lone pair on oxygens
180°

Question 9

Why does hydrogen bonding not form?

Answer 9

• electronegativity less than O

* bond not polar enough

Question 10

When mentioning hydrogen bonding

Answer 10

Mention that hydrogen bonding is the strongest intermolecular bonding

Question 11

Deflecting jets

Answer 11

• dipole
• not symmetrical
• charged object

Question 12

Trend in BP between HCl to HI

Answer 12

Increases -> more London forces

Don’t confuse with reactivity

Question 13

How does an ionic substance dissolve?

Answer 13

Ions are hydrated by water molecules

Question 14

copper is an

Answer 14

orange solid

Question 15

tetrahedral bond angle

Answer 15

109.5

Question 16

5 bonding pairs

Answer 16

tetrahedral bipyramidal (120, 90)

Question 17

electron pair repulsion

Answer 17

pushes bonds closer together

Question 18

Hydrogen bonding occurs

Answer 18

Between the atom and the H of another
show partial charges
h won’t have lone pair, other atom will

Question 19

Why is it better at dissolving?

Answer 19

hydrogen bonds broken and then reformed?

Question 20

Why is it worse at dissolving?

Answer 20

hydrogen bonding broken and only other forces formed

Question 21

London forces rely on

Answer 21

the random movement of electrons