Chemical bonding and structure

Question 1

When are compounds polar?

Answer 1

Compounds are polar when there is an unsymmetrical distribution of charge

Question 2

Please order intermolecular forces from weakest to strongest

Answer 2

Dispersion forces < dipole-dipole forces < hydrogen < covalent

Question 3

What does volatility mean?

Answer 3

Refers to how easily something evaporates

Question 4

What is a covalent bond composed of?

Answer 4

A covalent bond is composed of two or more non-metals

Question 5

What are ionic compounds composed of?

Answer 5

Ionic compounds are composed of a metal and non-metal

Question 6

Describe metallic bonding and how it contributes to electrical conductivity.

Answer 6

Metallic bonding is electrostatic forces of attraction between a lattice of metal cations and a sea of delocalised electrons.

The delocalised electrons are responsible for conductivity as they are free to move and carry charge.

Question 7

What elements does hydrogen elements occur with?

Answer 7

Nitrogen, Oxygen and Fluorine