Identify the number of Al, S, and O atoms in the coagulating agent aluminum sulfate (Al₂(SO₄)₃).

• A. Al: 2, S: 3, and O:12
• B. Al: 6, S: 3, and O:12
• C. Al: 5, S: 4, and O:7
• D. Al: 3, S: 2, and O:8

Answer: (A)