A student studies four chemicals in a laboratory investigation.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.