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Endothermic and Exothermic Reactions (Experiments)





This is a series of lectures in videos covering Chemistry topics taught in High Schools.

Endothermic Reaction
In this experiment, two solids (Ammonium Nitrate and Barium Hydroxide) are added to a beaker. As they react, ammonia gas, water and Barium Nitrate are produced. This results in a large increase in entropy, which is the measure of randomness in a system. This causes the temperature to drop, as there is an increase in Enthalpy.
Dissolving Ammonium Nitrate An Endothermic Process
A demonstration of the endothermic nature of the dissolving process for Ammonium Nitrate.



Propane Torch: Exothermic/Endothermic Reactions
Dissolving Calcium Chloride: An Exothermic Process
A demonstration of the exothermic nature of the dissolving process for calcium chloride.


Exothermic Reactions
4 ways to make fire without matches by using chemistry


Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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