[Pepealej]

I've done two reactions with Fe, accelerating them with heat.

One is Cupric Nitrate and Fe, and another is Sulfuric Acid and Fe. I have to write down the colours I'll get in the end in those two rections.

I've been asking and they've told me I will get blue, green and then yellow, or something similar... but I don't remember seing those colors..

Thanks for your help

[Hunter2]

Which color have Cu²⁺, Fe²⁺ and Fe³⁺ in aqueous solution?