Copper(II) + chromate

[miracle]

hi

i have my chem exam today and there is one question.
Predict the color of copper(II) chormate in aqueous solution.
I know that copper(II) is blue and chromate is yellow ( given in the question)
but what color is that compound? Hope that you can help me with this and if possible, can you explain how you get that answer( i mean how to predict).

thanks a lot

miracle

[Borek]

My prediction: solution will be clear. Copper chromate doesn't seem like something soluble.

Best,
Borek

[miracle]

Hi everyone,

i know what color it is now, it's green.
but why (in fact, can this be predicted?)?

Miracle

[charco]

copper II ions are blue in aqueous solution
chromate VI ions are yellow

blue superimposed over yellow gives green