How many moles would there be in 1.5x10^24 molecules of water?

5.85 moles

Explanation:

Moles in (3.52 X 10^24) molecules of water. 3.52 x 10^24 molecules x `1mol/6.02 x 10^23 molecules = 5.85 moles of H2O.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

it is stable as it is in group 0 which have full outer shells of electrons