Answer:
a. 6 mol of oxygen
b. 10 mol of iron(III)oxide
Explanation:
Use mole concept.
<span>the elements in groups1a, 2a, 3a have positive charges according to their group numbers</span>
The most common allotropes are:-
White phosphorus
Red phosphorus
The red one is an intermediate phase between white and violent phosphorus.
There would be 2 which would be on the oxygen