Answer
Both compounds display very similar physical characteristics. In this case, however, just looking at the hydrates will suffice. The copper hydrate is a crystalline dark blue compound (because we are considering the substance to be pure, the color of the cooper hydrate is very distinguishable). The iron hydrate, on the other hand, is a greenish powder.
Work Step by Step
Both compounds display very similar physical characteristics. In this case, however, just looking at the hydrates will suffice. The copper hydrate is a crystalline dark blue compound (because we are considering the substance to be pure, the color of the cooper hydrate is very distinguishable). The iron hydrate, on the other hand, is a greenish powder.