Oxidation and Reduction

Question 1

Distinguish between oxidation and reduction.

Answer 1

OILRIG

Oxidation is the loss of electrons, reduction is the gain of electrons.

Question 2

Do oxidation and reduction happen together.

Answer 2

Yes are you dumb

Question 3

True or false

Atoms in the elemental state have an oxidation number of 0

Answer 3

True

Question 4

True or false

In simple ions the oxidation number is the same as the charge on the ion

Answer 4

True

Ex: Mg2+ —- +2
O2- ——— - 2

Question 5

The higher the oxidation number..

Answer 5

The more oxidized it has become (the more electrons lost etc etc etc)

Question 6

IN A VOLTAIC CELL: What is the cathode?

Answer 6

Where reduction occurs, it is positive

Question 7

IN A VOLTAIC CELL: What is the anode?

Answer 7

Where oxidation occurs, it is negative

Question 8

Why is a salt bridge essential?

Answer 8

enables a negative charge to be carried in the opposite direction to that of the electrons. The ion movement neutralizes any build up of charge and maintains the potential difference.

Question 9

How do you make a non-spontaneous reaction spontaneous.

Answer 9

Electrolytic cell what up.

Question 10

IN AN ELECTROLYTIC CELL

What happens in the Cathode and the anode?

Answer 10

Cathode: Cations gain electrons aka they reduced

Anode: Anions lose electrons aka they are oxideized