FIELDS, FIELDS FIELDS: As ‘Location’ is to Real Estate, so ‘Fields’ are to Physics
POTASSIUM REACTS EXPLOSIVELY WITH WATER
Variations Available Elemental Potassium Placed in Beaker of Water An exothermic displacement reaction between elemental Potassium and water producing aqueous Potassium Hydroxide and Hydrogen gas.
- Potassium is a light metal that floats on water. But exposure to water causes it to burst into flame. It appears as a lilac-colored flame floating on top of the water.
- The violent reaction of potassium and water causes this flame. The potassium (K) unites with water (H2O) to form potassium hydroxide (KOH) and hydrogen gas (H2). The chemical equation of this reaction is: 2K + 2H2O = 2KOH + H2. This
reaction liberates a generous amount of heat.
- Eventually an explosion occurs, but it is not the potassium that explodes. Rather, since the potassium-water reaction results in the production of hydrogen gas and a large quantity of heat, the heat causes the hydrogen gas to react
explosively with the oxygen in the air. Read more : http://www.ehow.com/facts_7208191_potassium-explodes-water.html
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