An oscilloscope is a machine that gives a picture of a sound wave. low-pitched sounds have wide waves, and high-pitched sounds have thin waves. which sound below has the highest pitch? f g h j

a c d and f

just finished the assignment

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.