Please help me to this science lesson, thanks to your response.

Is a chemical message sent by another individual.

Once similarity and one difference between a mixture of elements and a mixture of compounds

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound