Answer:
Solution
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Sodium and potassium metals react violently with cold water.
Observations :
1. Metal starts moving over the surface of the water making a hissing sound.
2. Metal starts reacting with water causing little explosion
3. Soon the metal catches fire and starts burning.
Reaction:
2K+2H
2
O→2KOH+H
2
2Na+2H
2
O→2NaOH+H
2
The gas evolved during the reaction can be identified bringing a burning candle near it. The candle burns with a pop sound indicating the evolution of hydrogen gas.
Explanation:
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