Question

Sodium metal reacts with water to form sodium
hydroxide and gas.
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Answer 1

Answer:

Sodium metal reacts rapidly with water to form a colourless basic solution of sodium hydroxide (NaOH) and hydrogen gas (H2). The reaction continues even when the solution becomes basic. The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic.

Answer 2

Answer:

Sodium is a highly reactive metal as it occupies the second position, after potassium, in the metal activity series. It reacts violently with cold water to produce sodium hydroxide and hydrogen gas. When added to cold water, the metal floats on the surface of water as its density is 97g/cc and after sometime it melts at 97°C to form silvery globules which dart on the surface of water and then finally catches fire and burns with golden yellow flame. The final solution turns soapy, turbid and alkaline. The reaction occurs very violently and it is an exothermic reaction. The reaction for this is -

2Na + 2H2O ----------> 2NaOH + H2

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