Inspecting the oxidation states, reactants:

Al (s) → 0

O2 (g) → 0

Products:

O of Al_{2}O_{3} → -2

Al of Al_{2}O_{3}:

2x+(3)(-2) = 0

2x-6 = 0

x = +3

For the oxidation-reduction reaction equation given here,

4Al + 3O_{2} --> 2Al_{2}O_{3}

indicate how many electrons are transferred in the formation of 1 formula unit of product.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Calculate Oxidation Number concept. If you need more Calculate Oxidation Number practice, you can also practice Calculate Oxidation Number practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty of*For the oxidation-reduction reaction equation given here,4Al...*as medium difficulty.