3A + 2B + C → 2D + E 2.0 moles of B react with an excess of A and C. If the reaction produces a 50% yield of reactant E, what is the actual yield (in moles) of E?
2.0 b) 1.5 c) 1.0 d) 0.50 e) 0.25

Answer:

a. energy is absorbed in the reaction.

explanation:

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.

Iam not going to tell you

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

Answers are 1,2,4 its correct on edgenuity.