Sandra found a strangely shaped object on the ground. The object has a mass of 398g and a volume of 124ml. What is the density of the object?

14 days is the half-life of phosphorus-32

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.