Question 7 of 20 A student is in the lab exploring the relationship between volume and pressure. The student takes a reading of the initial
pressure of an ideal gas but forgets to record the volume before changing it to 296 mL. The student notices that the pressure of
the gas increases from 1.20 atm to 1.98 atm.

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 correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."

Sorry i dont understand the question can you rephase it?