Electrochemistry

Question 1

Define electrolysis.

Answer 1

Electrolysis is the use of electricity to bring about a chemical reaction in an electrolyte, i.e. a chemical reaction is produced when an electric current is passed through an electrolyte

Question 2

Define an electrolyte

Answer 2

An electrolyte is a compound which when molten or dissolved in water will conduct an electric current

Question 3

What happens in an electrolysis reaction?

2

Answer 3

Oxidation occurs at the positive electrode

Reduction occurs at the negative electrode

Question 4

Define electroplating.

Answer 4

Electroplating is a process where electrolysis is used to put a layer of one metal on the surface of another

Question 5

Define the electrochemical series

Answer 5

The electrochemical series is a list of elements in order of their standard electrode potentials