How do the displacement, velocity, and acceleration of a runner
change as he races from the starting line toward the finish line
along a straight path?

answer; ///(d) the correct answer is double or triple

it is the most commonly accepted one

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.