13. base your answer to the following question on the information below and you knowledge of chemistry,
a 100.-gram sample of liquid water is heated from 20.0°c to 50.0°c. enough kcion(s) is dissolved
in the sample of water at 50.0°c to form a saturated solution.
using the information on table b, determine the amount of heat absorbed by the water
when the water is heated from 20.0°c to 50.0°c.

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. 

Idon't know hope someone you