What happens to a light wave that travels through glass and strikes a boundary with water at a 45° angle?
A. It reflects back into the glass with a 45° angle of reflection.
B. It reflects back into the glass in the direction it was traveling from.
C. It refracts in the water, toward the boundary.
D. It refracts in the water, away from the boundary.

D

it reflects back into the air moving the opsite direction.

i hope this helps :)

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.