Suppose you have a liquid solution containing two components, a and b. the boiling point of pure a is 46.0 c and the boiling point of pure b is 116.0 c. your solution has a mole fraction of component a equal to 0.69, and the solution behaves as an ideal solution. what is the boiling point of this solution? (choose the best answer - a, b,c, or d)
a) it is somewhere between 46 and 116 degrees c

b) it is less than 46 degrees 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. 

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.

The ratio is 3: 2. i.e. c.

The answer is d. hope i !