Imagine two pure samples of gas in identical closed containers: sample A and sample B. Sample B has a lower temperature than sample A.
Each of the statements below is true about the samples. Complete the table.
Contributes to the
temperature difference
Does not contribute to
the temperature
difference
The particles in sample B have a
lower average speed than the
particles in sample A.
Each particle in sample A has more
mass than each particle in sample B.
The total mass of sample A is higher
than the total mass of sample B.

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. 

It will appear as o2(g) as a reactant 

When china's civil war resumed, the nationalists held an advantage because the nationalist had more soldiers  than the communist.