A number of reports state that a solution of 70% alcohol is effective in deactivating the coronavirus. A solution is prepared with 70.0% isopropanol and 30.0% water by volume. Hint: You will need the densities of these compounds. Assume no volume change upon mixing. Calculate (A) molarity, (B) molality, and (C) mole fraction.

e

explanation:

answer; i believe that the correct answer is (a) potassium(k)

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.