Electrochemistry

Question 1

redox reactions

Answer 1

• a reaction involving the transfer of electrons

Question 2

oxidation

Answer 2

• the loss of electrons

Question 3

reduction

Answer 3

• the gain of electrons

Question 4

oxidising agent

Answer 4

• a substance that accepts electrons

Question 5

reducing agent

Answer 5

• a substance that donates electrons

Question 6

anode

Answer 6

• the electrode where oxidation takes place

Question 7

cathode

Answer 7

• the electrode where reduction takes place

Question 8

electrolyte

Answer 8

• a substance that can conduct electricity by forming free ions when molten or when dissolved in solution

Question 9

galvanic cell

Answer 9

• self-sustaining electrode reactions

- conversion of chemical energy into electrical energy

Question 10

electrolytic cell

Answer 10

• electrode reactions that are sustained by a supply of electrical energy
• conversion of electrical energy into chemical energy

Question 11

standard solution

Answer 11

• a solution of known concentration that is unlikely to change for a period of time