The molecule co2 has two c-o double bonds. describe the bonding in the co2 molecule. which involves hybrid orbitals for carbon and oxygen?

The oxygen atoms are SP2 hybridized while the carbon atoms are SP hybridized.

Explanation:

C- 1s2 2s2 2p2

O- 1s2 2s2 2p4

In the formation of CO2, double bonds are formed from carbon to each oxygen atom. This leaves the two lone pairs on each oxygen atom. Hence carbon is sp hybridized while oxygen is sp2 hybridized. The sp hybridization of carbon accounts for the four electrons which it shares with oxygen on either side in the CO2 molecule.

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.