Lewis has two spheres made of different substances. sphere a has a volume of 19.4 cubic centimeters and a mass of 24.0 grams. sphere b has a volume of 17.0 cubic centimeters and a mass of 13.6 grams. lewis knows that the density of water is 1.0 gram/cubic centimeter. if lewis places both spheres in a tub of water, which will float?
a. sphere a will float because it is less dense than sphere b.
b. sphere a will float because it has more mass than water.
c. sphere b will float because it has less mass than sphere a.
d. sphere b will float because it is less dense than water.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.