Furan and maleimide undergo the diels-alder reaction at 25 degree c to give the endo product when the reaction takes place at 90 degree c, however, the major product is the exo isomer. further study shows that the endo product isomerizes to the exo product at 90 degree c. draw the exo product of the diels-alder reaction of furan with maleimide.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

Which of the following is a chemical property of water at 4 c