Sulfur is most likely to form covalent bond with oxygen.
Re usable glass plates instead of paper plates
I have the same question atm, but I'm pretty sure this is the answer.
I'm pretty sure we're combining these together to get a reactant, so if this is one of your answer choices chose 2Fe2O3, reason is when we add 4Fe + 3O2, we get the same answer, but in a different form.
Answer: (B)
Explanation: Decreases the number of bases in the sequence.