Reactions form predominately or exclusively one enantiomer. is the addition of a single oxygen atom to an alkene to form an epoxide. of an alkene forms an alkane by addition of h₂. is the addition of two hydroxy groups to a double forming, a 1,2-diol or glycol. cleavage of an alkene breaks both the σ and π bonds of the double bond to form two carbonyl groups. reactions form predominately or exclusively one constitutional isomer. dihydroxylation results when an alkene is treated kmno4 or oso4, where each reagent adds two oxygen atoms to the same side of the double bond.

Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

What are the similarities of physical and chemical change ?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.