2.4 Study Guide

Question 1

What are the intermolecular attractions?

Answer 1

Dipole-Dipole, London Dispersion, and Hydrogen

Question 2

What are the intermolecular attractions ranked from weakest to strongest?

Answer 2

London Dispersion, Dipole-Dipole, and Hydrogen

Question 3

When do London Dispersion attractions form?

Answer 3

When all of an element’s electrons are to one side of the atom, as well as another element’s electrons to the opposite side, they form a brief attraction.

Question 4

When would a hydrogen attraction form?

Answer 4

This occurs when Hydrogen is bonded with a very electronegative atom.

Question 5

If a molecule is symmetrical and has a very similar electronegativity, is it polar or non polar?

Answer 5

It is non-polar because for a molecule to be polar, it has to be asymmetrical.

Question 6

If a molecule is asymmetrical and has a very different electronegativity, is it polar or non polar?

Answer 6

It is polar because it has an asymmetrical structure.

Question 7

How do you know if a molecule is soluble in water?

Answer 7

If the molecule is polar then it is soluble in water, if it is non-polar, then it is insoluble in water.

Question 8

How will you be able to know what type of attraction will form between two molecules?

Answer 8

The bond formed is based on the structure of the elements, the electronegativity of the molecule, and the polarity of the elements.