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Item #: PF2002 

Price: $30.00

In this lab experience, students experience on how energy flows in chemical reactions by exploring endothermic and exothermic reations. Students observe reacting CaO with H2O will result in a transfer of energy from a system (the reaction) to the surroundings (the area in direct proximity to the reaction) that results in a measurable increase in temperature. Reacting NH4SCN and Ba(OH)2•8H2O will result in a transfer of energy from the surroundings to the system that results in a measurable decrease in temperature.

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Product Details

Safety: Before conducting the lab, review with the class the safety precautions on the student page. Then discuss any safety precautions that are specific to your science laboratory or classroom.


Materials Included in Kit

Consumable:
Ammonium thiocyanate, 100 g
Barium hydroxide, 150 g
Calcium oxide, 100 g
Zipper-lock bags, 15


Additional Materials Required
Cylinder, Borosilicate Glass, 50 mL, 10
Flinn Scientific Electronic Balance, 410 x 0.01-g, 10
Flinn Digital Thermometer, 10