Ionic Compounds

Question 1

Does tap water conduct electricity? Why?

Answer 1

Yes due to its minerals

Question 2

How is a moving charge generated in a wire?

Answer 2

Moving Charge is generated from the electrons moving in a current

Question 3

How come sodium chloride conducts electricity only when in water?

Answer 3

In sodium chloride ions can’t move, however when water is added the particles can move in the current?

Question 4

What two things must a substance have to be able to conduct electricity?

Answer 4

Must have charged particles {e.g. Electrons/ions

Charged particles must be free to move

Question 5

When (aq) is written before the compound, what does this mean?

Answer 5

Means it is in a liquid

Question 6

What four things are good about ion models?

Answer 6

Rigid structure
Forms a cubic shape
Ions are organised
Positive next to negative in all directions

Question 7

What three things are bad about ion models?

Answer 7

Spaces between the ions due to them being different sizes
There will not be stick like bonds between the ions in real life
Model does not show vibrations of ions in the lattice

Question 8

What are two features of an ionic lattice?

Answer 8

Has a regular arrangement of ions and is held together by ionic bonds

Question 9

What does ate mean in a compound name?

Answer 9

Oxygen present

Question 10

What does ide mean in a compound name?

Answer 10

Oxygen not present