A pale orange solution is sprayed onto a sheet of seemingly blank, white paper. Dark red and blue lettering appears. 0.2M KSCN solution in an ointment jar. 1g of KSCN in 50mL of water 0.2M K 4 Fe(CN) ...

Dot and cross diagrams help us to model when ions are formed from atoms. Here’s an example using sodium and chlorine. They form ions which bond to form sodium chloride. 2. Work out how many ...

Unlike the other tests described on this page, the test for carbonate ions works whatever acid is added. Explain why, in a test for sulfate ions, the sample is acidified with hydrochloric acid first.

A new study provides fresh insight into traditional acid-base chemistry by revealing that the mutual neutralization of ...

The interplay between the intimate coordination chemistry of each family of sites and the changing metabolic needs of the cell may well prove to be a key to unlocking the roles of metal ions in ...