An imaginary compound made up of atoms of carbon , hydrogen, chlorine and oxygen. Combustion of a 1.000-g sample yields 1.407g of carbon dioxide,0.4g of water and 0.4g of chlorine gas , what is the mass percent of oxygen in this compound?

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car