Answer:
4
General Formulas and Concepts:
<u>Chemistry</u>
- Identifying Moles/Atoms and Compounds
Explanation:
<u>Step 1: Define</u>
Al₂(SO₃)₃ - Aluminum Sulfide
2Al₂(SO₃)₃
<u>Step 2: Identify</u>
In Aluminum Sulfide, we have 2 Al's for every 3 SO₃²⁻'s.
So far, we have 2 Al's in total.
BUT, since we have a 2 coefficient in 2Al₂(SO₃)₃, we need to multiply by 2.
Therefore, we have 4 Al's in total.
I think the answer is a or d
Distance - how long it takes an object to go from one place to another.