How does potassium react in cold water
Chemistry
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Answer
Potassium reacts with cold water in a highly exothermic reaction.
Step-by-step solution
3 stepsThe chemical equation for the reaction is
2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g).
Potassium metal (K) reacts with water (H₂O) to form potassium hydroxide (KOH), which dissolves in the water, and hydrogen gas (H₂).
This reaction is very vigorous.
The heat generated by the reaction is enough to ignite the hydrogen gas produced, causing a small explosion or a flame. The potassium metal melts due to the heat and moves rapidly on the surface of the water.
Potassium reacts with cold water to produce potassium hydroxide and hydrogen gas, often with ignition of the hydrogen.
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