Synthesis of hexane-3,4-diol from trans-3-hexene may be accomplished in two ways: (i) OsO4 hydroxylation & (ii) C6H5CO3H epoxidation followed by NaOH(aq) opening of the epoxide ring. Which of the following statements about the products from these reactions is correct? A. two different isomers are formed, but both are chiral
B. the two methods give the same product
C. (i) gives an achiral isomer, (ii) gives a chiral isomer
D. (i) gives a chiral isomer, (ii) gives an achiral isomer

Ci think not

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. 

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more