Q:Q: What is an ion that is in common to both salts in a solution? Read this paragraph and choose the correct option from the provided answers: This situation describes the common ion effect. A common ion is an ion that is in common to both salts in a solution. In the above example, the common ion is Ca 2+ . The common ion effect is a decrease in the solubility of an ionic compound as a result of the addition of a common ion. Adding calcium ion to the saturated solution of calcium sulfate causes additional CaSO 4 to precipitate from the solution, lowering its solubility. The addition of a solution containing sulfate ion, such as potassium sulfate, would result in the same common ion effect. Choices: - regular ion - strong ion - native ion - common ion A:
A:
common ion