n an experiment the gram atomic mass of magnesium was determined to be 24.7. Compared to the accepted value 24.3, the percent error for this determination was A) 0.400 B) 1.65 C) 24.7 D) 98.4

B) 1.65

Explanation:

See the image uploaded for the percent error formula

Work:

Theoretical Value - Accepted Value/Accepted Value * 100

= (24.7-24.3)/24.3 * 100

= 0.4/24.3 * 100

= 0.0164609053 * 100

= 1.64609053

Can be rounded to 1.65%

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. 

Compound with sulfer  is bright red