9. List three (3) physical properties that can be used to distinguish the product from the starting material (i.. how will you know whether a reaction (isomerization) has occurred?) Consider 3 different tests that can actually be performed in the lab setting (do not just list qualitative observations). Propose a valid explanation for these differences. 10. What common organic laboratory technique could be used to improve the purity of our final product? Hint Chedk out tbe laboratory tips in the front of this mansal. Which solvent would be a good choice for this technique? 11. How could this experiment be made greener? . List one suggestion with reference to GCP\#s, be specific with an actual, applicable and practical suggestion. 12. Why is dimethyl maleate a liquid whereas dimethyl fumarate is a solid? Give the expected melting point range of the product (with reference). 13. Fxplain the change, if any, on melting point if a decrease in intermolecular hydrogen bonding occurred in a sample? Explain. 14. For the following two sets of isomers, should you be able to tell the difference between them by taking their melting points? Explain why or why not. (1)