On a beach trip during spring break, you notice a silver chain in the sand next to your towel. Luckily you have an analytical balance, a graduated cylinder, and a bottle of water that you can use to verify the identity of the metal based on its density. You just so happen to remember that the density of silver is 0.01049 kg/cm3 from your chemistry class. If you begin with 6.15 mL of water in the graduated cylinder and the chain has a mass of 6,113.1 mg, what should be the final volume in the graduated cylinder after you drop the chain in it?

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. 

Answer:

5.6⋅10−^19  j

do you need the explaination?