Question

12
An open beaker with some water was weighed. A small piece of sodium was weighed and carefully added to the water
in the beaker.
It reacted vigorously.
The beaker was weighed again.
It was later found that the total mass of the beaker with the products was less than the sum of the mass of sodium and
beaker of water used for the reaction.
Which among the following could explain this accurately?


options
Some metal atoms did not undergo reaction.
20
The mass of sodium was not equal to that of water.
30
Some sodium atoms were destroyed during the vigorous reaction.
40
The reaction involves evolution of a gas which escaped from the open beaker.​

Answer 1

Answer:

hi

Explanation:

iam not understanding what u are asking