49. Which type of precursor is used as reactant in intramolecular Claisen
condensation?
O One molecule with an ester end
O Two molecules of ester
O One molecule with two ester ends
O One molecule of ester and enolate​

C.One molecules with two ester ends

Explanation: In intramolecular Claisen condensations, reactions occur for 1,6 and 1,7 diesters, as these substances result in the formation of compounds containing five and six membered rings, respectively.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

that tool would be a compass