Topic 1.1

Question 1

What’s Ionic Bonding?

Answer 1

When the atoms in a reaction donate or share electrons to gain a full outer shell

Question 2

What’s Covalent Bonding?

Answer 2

When the atoms involved share electrons to become a compound

Question 3

How many ° is an atom of water at

Answer 3

104.5

Question 4

What’s a hydrogen bond?

Answer 4

Weak electrostatic intermolecular bonds between polar molecules using at least one hydrogen atom

Question 5

Why is it important that water is a polar substance?

Answer 5

So that many ionic substances will dissolve in it

Question 6

What are 3 important properties of water?

Answer 6

*It’s a transport medium
*Reaches maximum density at 4°C making the particles grow widely spaced(why ice floats)
*It’s slow to absorb and release heat

Question 7

What does Cohesion mean?

Answer 7

Forces between the molecules mean that they stick

Question 8

What is Adhesion?

Answer 8

Molecules that are attracted to different molecules