REDOX Reactions & Cells

Question 1

Electrolyte

Answer 1

chemical compound that allows the flow of electric charge within a cell

Question 2

Half-equation

Answer 2

one of two equations (oxidation or reduction) which describes one half of a redox reaction

Question 3

Oxidant (Oxidising Agent)

Answer 3

species that oxidises another substance and is itself reduced

Question 4

Oxidation

Answer 4

chemical reaction where a species increases its oxidation number by losing electrons

Question 5

Oxidation Number

Answer 5

number assigned to an element, representing the number of electrons lost or gained by an atom of that element to form a chemical bond with another species

Question 6

Oxidised

Answer 6

a substance that has lost electrons +/ hydrogen, or has gained oxygen

Question 7

Reductant (Reducing Agent)

Answer 7

species that reduces another substance and is itself oxidised

Question 8

Reduced

Answer 8

a substance that has gained electrons +/ hydrogen, or has lost oxygen

Question 9

Reduction

Answer 9

chemical reaction where a species decreases its oxidation number by gaining electrons