Two substances have different physical and chemical properties. Both substances have
molecules that contain two carbon atoms, one oxygen atom, and six hydrogen atoms. These two substances must be
(1) isomers of each other
(2) isotopes of each other
(3) the same compound
(4) the same hydrocarbon
molecules that contain two carbon atoms, one oxygen atom, and six hydrogen atoms. These two substances must be
(1) isomers of each other
(2) isotopes of each other
(3) the same compound
(4) the same hydrocarbon