An iron container is filled with aqueous copper(II) sulfate solution and then left undisturbed for several days. Which statement describes the outcome?
- AAtmospheric oxygen reacts with the copper(II) sulfate to give black copper(II) oxide.
- BSome fine iron particles are formed in the solution.
- CThe part of the container in contact with the solution is coated with copper.
- DThe solution turns from green to blue.