Charles' law states that the volume and temperature of a gas have a direct relationship. As temperature increases, volume increases, when pressure is held constant. What must one do to keep the pressure constant when heating a gas?
A) Use a metal container with a lid.
Eliminate
B) Increase the volume of the container.
C) Decrease the volume of the container.
D) Use a metal container without the lid.

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