Which of the pictorial representations best represents the precipitation reaction that occurs between aqueous solutions of Fe³⁺ and OH−? Assume that the circles represent cations and the squares represent anions.

Question

Quizplus · Accepted Answer

The reaction between Fe³⁺ and OH− results in the formation of Fe(OH)3 and ^3-. The circles represent cations, so Fe is represented by a circle. The squares represent anions, so ^{3 and} are represented by squares. OH− is not represented in any of the answer choices, but since it is a hydroxide ion (which has a negative charge), it would also be represented by a square. In choice C, the Fe cation and the ^{3 and} anions react with OH− to form Fe(OH)3 and ^3-, which is the correct product.

Which of the Pictorial Representations Best Represents the Precipitation Reaction