For the reaction of Lithium and Oxygen a write the balanced

For the reaction of Lithium and Oxygen

a) write the balanced oxidation half reaction:

b) write the balanced reduction half reaction:

c) what is the oxidizing agent:

d) what is the reducing agent:

Solution

4Li + O2 --->2Li2O
a,oxidation half reaction: O2 + 4e- ---> 2O (with a 2- charge)
b,reduction half reaction: 4Li--->4e- + 4Li (with a 1+ charge)

c,Oxygen is oxidising agent (the one gains electrons)

d,lithium is reducing agent (the one lose electrons)