Question

When potassium chromate, K2CrO4, is dissolved in water, what ions form? This may be represented by what type of equation?

A) K+ and O2-; Molecular equation
B) K+ and CrO4^2-; Ionic equation
C) K+ and CrO4^2-; Net ionic equation
D) K+ and Cr2O7^2-; Chemical equation

Answer 1

The correct answer is that when potassium chromate is dissolved in water, K+ and CrO4^2- ions form, represented by an ionic equation.

Step-by-step explanation:

When potassium chromate, K2CrO4, is dissolved in water, the ions that form are the potassium ion, K+, and the chromate ion, CrO4^2-. This process can be represented by an ionic equation, reflecting how the ionic compound dissociates into its constituent ions in aqueous solution. Hence, the correct answer to the question is B) K+ and CrO4^2-; Ionic equation.