Calculate the molarity of a solution prepared by dissolving 12.9 gg of Na2CrO4Na2CrO4 in enough water to produce a solution with a volume of 720. mL

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

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.