A solid will float on any liquid that is more dense than it is. The volume of a piece of amber is 50.0 mL, and the mass is 54.0 g. On which of the following liquids will the calcite float: acetone (d= 0.292 g/mLl), water (0.998 g/mL), propane (d=1.26g/mL), methylene bromide (d=2.50 g/mL), bromine (d=3.10 g/mL), mercury (d=13.55 g/mL)

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

The answer would be true

Ibelieve the answer is d. bleachhope my answer has you : )