Cobalt ions form complex ions with water and chloride as shown in the reaction. The left side of the reaction is pink, and the right side of the reaction
is blue.
Co(H₂O)²+ + 4Cl + heat CoCl² + 6H₂O
Which statement about the system at equilibrium is correct?
(1 point)
O Cooling a purple solution will turn it pink.
O Adding hydrogen chloride (HCI) to a blue solution will turn it purple.
O Adding water to a purple solution will turn it blue.
O Heating a blue solution will turn it purple.