5. Water with a mass of 35.4 g is added to an empty flask with a mass of 87.432 g.
The mass of the flask and the water is 146.72 g after a rubber
stopper is added.
What is the mass of the stopper to the correct number of
significant figures.

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

answer///carbon;