Suppose that a different student obtained reaction rates for the particle-size experiment, and that
these rates did not show a pattern. Check all
possible sources of this error.
O Some of the broken tablet was not added to
the water
The tablet was not crushed enough to make
a substantial difference.
The size of the reaction beaker was varied.
The tablets were not uniform in their mass.

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.