Question

which element will float after the reaction with water???​

Answer 1

Answer:

Explanation:

Lithium, sodium and potassium - part of the Group 1 metals - have low densities, and float on water. Rubudium and Caesium are denser and sink in water. They are normally stored in mineral oil because they react with the oxygen in the air

Answer 2

Calcium (Ca) will float over after reaction with water because the H2 gas which evolves after this reaction gets attached to the Calcium and makes it float over it.

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