How many sigma bonds were formed from how many pi bonds in the diels-alder reaction lab? (5pts) did your test tube heat up after you added the cyclopentadiene to the dissolved maleic anhydride (ethyl acetate and hexane were the solvents)? why or why not would the test tube be hot, explain in detail? (15 pts) the diel-alder reaction is said to be "stereospecific." what does that mean in terms of product produced in the diels- alder lab? (15 pts) 5. what is an example of an aldol reaction? (10 pts)