Oxidation And Reduction

Question 1

Definition of oxidation and reduction

Answer 1

oxidation is loss of electrons
reduction is gain of electrons

Question 2

Which side do you add the electrons to in half equations?

Answer 2

Always add the electrons to the more positive side

Question 3

What is an oxidising and reducing agent?

Answer 3

• oxidising agent causes something to be oxidised, by becoming reduced itself. An oxidising agent isn’t an electron acceptor.
• reducing agent causes something to be reduced, by becoming oxidised itself. A reducing agent is an electron donor.

Question 4

Halogen/halide ion reactions

Answer 4

All in group 7 are oxidising agents. Trend: power increases up the group.