Regarding the formula Al2O3 which of the following is accurate?

AThe coefficient 3 indicates that there are a total of three atoms of oxygen present in the substance.
BThe subscript 2 indicates that two atoms of oxygen are present in the substance.
CThe chemical symbol Al indicates that oxygen is present in the substance.
DThe subscript 2 indicates that two atoms of aluminum are present in the substance

Verified Answer :

The question says,'regarding the formular Al2O3, which of the following is accurate. The correct option is D. The subscript indicate that there are two atoms of aluminium in the compound. The subscript 3 indicates that, there are three atoms of oxygen in the molecule. The figure 3 attach to oxygen is a subscript not a coefficient, that is why option A is not correct.

your answer is D. The subscript 2 indicates that two atoms of aluminum are present in the substance