Solution to Chemical Mystery #6 is presented. Also, concepts related to the chemical can crush demo are briefly discussed.
Just the other day within my IB Chemistry HL classes, we were discussing the color of transition metal complex ions in solution. It's a bit imperfect, because they are not yet dissolved, but I set up a number of metal chloride salts in order to help students see the pattern. They are arranged according to the position of the metal in the periodic table. It ends up being quite obvious to the students that the only metal salts with color are in the d-block. I'm now in the process of ordering more chloride salts so I can complete the pattern even more the next time I teach this topic.
In this Activity, students investigate the chemistry of the popular Salt Crystal Garden.
In this Activity, students investigate a classic chemistry demonstration that uses the phenomenon of freezing-point depressio
Multiple fountains are created as ammonia gas dissolves in water.
As the liquid flows out of the system, we see the ammonia fountain process in reverse.
When water is squeezed into an inverted flask containing ammonia, the ammonia dissolves in the water and the reduced pressure causes a fountain effect.
The reaction between lithium and water is shown.
The reaction between sodium and water is shown.
The reaction between potassium and water is shown.