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Exothermic reaction

Exothermic reaction

When heated, powdered sulphur reacts with powdered zinc, releasing heat.

01:20

Chemistry

Keywords

exothermic, sulphur, zinc powder, zinc, powdered sulphur, fusion, zinc sulphide, redox reaction, light, heating, reaction temperature, activation energy, sulfides, Bunsen burner, watch glass, tripod, wire gauze with ceramic centre, chemical reaction, experiment, reaction, thermochemistry, chemistry

On-screen labels

Powdered sulphur S, Powdered zinc Zn, Mix powdered zinc with sulphur, then pour the mixture on a wire gauze with a ceramic centre., Place the Bunsen burner under the tripod that supports the wire gauze and light it., Observe the spectacular reaction., Sulphur and zinc react with each other violently and form zinc sulphide while releasing heat. The initial heating serves to provide activation energy that starts the reaction.
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