Endothermic reaction

Endothermic reaction

Barium hydroxide reacts with ammonium nitrate while absorbing heat from their surroundings.

01:44

Chemistry

Keywords

endothermic, barium hydroxide, ammonium nitrate, freezing, water, Erlenmeyer flask, wooden board, physics, reaction, experiment, chemical reaction, chemistry

On-screen labels

Ammonium nitrate crystals NH₄NO₃, Water H₂O, Wooden block, Barium hydroxide octahydrate crystals Ba(OH)₂ ∙ 8H₂O, Pour ammonium nitrate and barium hydroxide into a flask., Seal the flask, then shake it. After a while, the solid substances react with each other and form new, liquid substances., Pour water onto a wooden block and place the flask on it., Lift the flask after a while and watch what happens., Why do you think the flask has frozen to the wooden block?
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