Question

Describe all what you will observe when a piece of sodium is dropped into water.
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Answer 1

Answer:

When a piece of sodium metal dropped in cold water we observe: Sodium floats on water surface melts forming a silvery globule which darts about the surface of water catches fire and burns with golden yellow flame. Bubbles of hydrogen evolve and solution is soapy, slightly warm (alkaline) hence turns red litmus blue.

Explanation:

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Answer 2

its give hissing sound

and it is extho therm8c reaction

Na reaction in water