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These are all stock quizlet photos, but they do their mnemonic job well enough I think :) (I was forced to use stock photos for the colors, and some of the photos are of beverages; I feel obliged to say that NEVERTHELESS, UNDER NO CIRCUMSTANCES SHOULD YOU INGEST ANY OF THESE SOLUTIONS)

Cu1+

Green

Fe

Yellow to red-orange (depending on anion and charge of Fe); in rare cases, can form complex ion with a deep blue color

Fe2+

yellow-green (depending on the anion)

Fe3+

orange-red (depending on the anion)

Co1+

Green

Cr3+

Green (CrCl3) to Violet (Cr(NO3)3

Ni2+

Green

MnO4-

Purple (Mn w/ +7 oxidation state is purple)

CrO42-

Yellow

Cr2O72-

Orange

Cu(NH3)42+

Dark Blue; produced when ammonia is added to Cu2+ solutions

FeSCN2+

Red-brown, Wine-red to dark orange

Al, K, Li, Mg, Na, Ca, Ba, Sr, Zn

colorless aqueous ions and most of their solid salts are white.

Transition element ions with partially filled d orbitals

tend to release colored light.

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com. Click to see the original works with their full license.

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