Electrochemistry

Question 1

Redox reaction

Answer 1

A reaction involving the transfer of electrons, always accompanied by changes in oxidation number

Question 2

Oxidation

Answer 2

The loss of electrons

Question 3

Reduction

Answer 3

The gain of electrons

Question 4

Oxidizing agent (oxidant)

Answer 4

The substance that accepts electrons ( it gets reduced)

Question 5

Reducing agent (reductant)

Answer 5

The substance that donates electrons (gets oxidized)

Question 6

Anode

Answer 6

The electrode at which oxidation takes place (in an electrochemical cell). (Anode Oxidation or AN OX)

Question 7

Cathode

Answer 7

The electrode at which reduction takes place (in an electrochemical cell)
(Cathode Reduction or RED CAT)

Question 8

Electrolyte

Answer 8

A solution that can conduct electricity due to the presence of fee ions

Question 9

Half-cell

Answer 9

A metal (other elements may also be use) electrode in a solution of its ions

Question 10

Galvanic (voltaic) cell

Answer 10

A device, consisting of two half-cells, that converts chemical potential energy into electrical potential energy

Question 11

Electrolytic cell

Answer 11

A device, consisting of two half-cells, that converts electrical potential energy into chemical potential energy