The chemistry of anhydrides is similar to that of acid chlorides, although they react more slowly. A nucleophile attacks the carbonyl group to form a tetrahedral intermediate, and proton transfer to and from solvent primes the other half of the anhydride for elimination. Subsequent collapse of the tetrahedral intermediate with expulsion of the carboxylic acid yields the product ester. Draw curved arrows to show the movement of electrons in this step of the mechanism.

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.