If the coefficient 8 is placed in front of Ag2S in a chemical equation, how many sulfur atoms are represented by 8Ag2S?

• A. 2
• B. 4
• C. 16
• D. 8

Answer: (C)

Verified step by step guidance

1. Identify the chemical formula given: Ag2S. This means each formula unit contains 2 silver (Ag) atoms and 1 sulfur (S) atom.
2. Understand that the coefficient 8 in front of Ag2S means there are 8 formula units of Ag2S.
3. To find the total number of sulfur atoms, multiply the number of sulfur atoms in one formula unit by the coefficient: 1 sulfur atom per Ag2S unit times 8 units.
4. Express this mathematically as: \$8 \times 1 = 8$ sulfur atoms.
5. Double-check the problem statement and confirm if the coefficient applies to the entire formula unit or just part of it, and ensure the multiplication is done accordingly.