If the atmospheric pressure in the laboratory is 1.2 atm, how many moles of gas were in each syringe?

Air syringe
Room temp water 21.1 degree Celsius
Volume 5.0

Helium syringe
Room temp water 21.1 degree Celsius
Volume 5.1

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.