Potassium burning in water

Potassium burning in water

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Caption: Potassium burning in water. When water and metallic potassium come into contact they react to form potassium hydroxide and hydrogen gas. The reaction is exothermic, or heat-producing. Enough heat is generated to melt the potassium and ignite the hydrogen. The flame shows the typical purple colour of potassium ions. This reaction is characteristic of the Group I elements of the periodic table.

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Keywords: alkali, burning, chemical, chemistry, combustion, demonstration, element, energetic, energy, exothermic, experiment, flame, group i, group one, hydrogen gas, hydroxide, ion, lab, laboratory, metal, metallic, no-one, nobody, potassium, purple, reacting, reaction, school science, science education, smoke, water

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