Endothermic reaction

Endothermic reaction

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This image is part of the sequence Science and technology: Endothermic reaction


Caption: End of an endothermic reaction. Solid barium hydroxide and solid ammonium chloride have been mixed in a flask that is sitting on a damp piece of wood. As the two chemicals are mixed an endothermic, or heat-absorbing, reaction takes place and the temperature inside the beaker drops dramatically. The drop in temperature freezes the water between the flask and wooden block, sticking the two together.

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Keywords: ammonium chloride, apparatus, barium hydroxide, chemical, chemistry, demonstrating, demonstration, digital thermometer, end, endothermic, energetic, energy, enthalpy change of solution, equipment, experiment, finish, flask, freezing, frozen, heat-absorbing, lab, laboratory, mixing, mixture, one person, reacting, reaction, school science, science education, sequence, slush, solid-solid reaction, studio shot, thermodynamics

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