For the reaction 4 Fe + 3 O2 → 2 Fe2O3, explain how you would calculate the moles of iron needed to make 10 moles of Fe2O3.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

answeridentity;

it has both hydrogen and oxygen