Which of the following is a demonstration of Boyle's gas law? Bubbles exhaled by a scuba diver grows as they approach the surface of the ocean water increasing in volume.
Bubbles exhaled by a scuba diver shrinks as they approach the surface of the ocean water decreasing in volume.
Bubbles exhaled by a scuba diver stays the same as they approach the surface of the ocean water.

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged

If this is a true or galse then its true but if not then what is the question?

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.