In a free-radical polymerization that proceeds in the absence of chain transfer, what would be the effect of (a) increasing the monomer concentration [M] four times at constant initiator concentration [I] and (b) increaseing [I] four times at constant [M] upon:

the answer is na (sodium)

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

c. orbital shape i hope this is correct