Redox reactions

Question 1

What does redox stand for?

Answer 1

Reduction - oxidation

Question 2

What is OILRIG an acronym form?

Answer 2

Oxidation is loss of electrons, Reduction is gain of electrons.

Question 3

Explain a redox reaction in a space ship.

Answer 3

The combining of liquid hydrogen and oxygen. In this reaction hydrogen is oxidized (losses electrons) and oxygen is reduced (gains electrons) to form H_2O (water.

Question 4

What is an oxidation number?

Answer 4

The excess (or defecit) of electrons that we pretend an element has in a compound.

Question 5

What is the oxidation number of an element.

Answer 5

Zero

Question 6

What does oxygen almost always have an oxidation number of?

Answer 6

-2, unless in a peroxide molecule, where it is -1

Question 7

What is hydrogens oxidation number?

Answer 7

+1

Question 8

What oxidation number do the halogens have?

Answer 8

-1

Question 9

What is the Haber process?

Answer 9

Removes Nitrogen from air, combines with hydrogen to form NH_3 (Ammonia). So
N_2 + 3H_2 = 2NH_3