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- Equilibrium
Common Ion Effect - Chemical Demonstration Kit
In this set of three demonstrations, students will observe a series of dramatic changes when common ions are added to solutions at equilibrium. The results illustrate the nature of equilibrium and LeChâtelier's principle. • Adding strong and weak aci...
Demonstrate Phase Changes of CO2 - Demonstration Kit
An ingenious idea to introduce and demonstrate phase diagrams and triple point using dry ice. At atmospheric pressure carbon dioxide exists only as a solid or gas. However, in a closed system, liquid carbon dioxide will exist when the pressure exceed...
Equilibrium in a Syringe - Chemical Demonstration Kit
It's bubbly, it's colorful—it's equilibrium in a syringe! Use ordinary seltzer water, an acid–base indicator and a large syringe to transform a common gas solubility phenomenon into an exciting, hands-on demonstration. An acid–base solution is added ...
Hot and Cold Equilibrium - LeCh,telier’s Principle - Chemical Demonstration Kit
Challenge students to explain the phenomenon observed in this amazingly simple but intriguing demonstration. Pour some violet colored solution into three different test tubes. Place one tube in cold water—the solution turns pink, from the bottom up. ...
Pink and Blue - A Colorful Chemical Balancing Act - Chemical Demonstration Kit
Demonstrate the power of balance in a reversible chemical reaction with this updated version of a classic demonstration! A solution of cobalt chloride turns from pink to blue and back again in a series of transformations as the concentrations of reac...
The Overhead Equilibrium Reaction - Chemical Demonstration Kit
A colorless solution is placed in a Petri dish on an overhead projector. The solution will become dark orange then colorless again by the addition of certain solutions and solids. A dynamic demonstration to illustrate LeCh,telier's principle of equil...
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