When anhydrous chromium(III) chloride reacts with water, solution X\mathbf{X}X is formed that contains a complex chromium ion, Y\mathbf{Y}Y, and chloride ions.
Give an equation for this reaction.
Give an equation to show how the complex ion Y\mathbf{Y}Y can act as a Brønsted–Lowry acid with water.
Describe two observations you would make when an excess of sodium carbonate solution is added to solution X\mathbf{X}X. Give an equation for the reaction. In your equation, include the formula of each complex chromium species.
Aqueous sodium hydroxide is added, until in excess, to solution X\mathbf{X}X. Describe two observations you would make. For each observation, give an equation for the reaction that occurs. In your equations, include the formula of each complex chromium species.
