Why is a rotting apple a reaction in which energy is neither absorbed nor released?
a. the chemical energy in the reactants is much greater than the chemical energy in the products.
b. the chemical energy in the reactants is almost equal to the chemical energy in the products.
c. the chemical energy in the reactants is much less than the chemical energy in the products.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.