Question Detail
Question
What is the atomicity of a molecule of iron(III) hydroxide with the formula Fe(OH)3?
Correct Answer
Option D is the correct answer.
Detailed Explanation
The formula Fe(OH)3 contains 1 Fe atom, and within (OH)3: 3 O atoms and 3 H atoms. Total atoms = 1 + 3 + 3 = 7 atoms.
Hint
Multiply the atoms inside the parentheses by the subscript outside, then add the atom outside the parentheses.