Determine the heat of reaction of the following chemical reaction using the standard heats of formation from the table in the Chemistry B Information Sheet. Show all of
your work. Then classify each reaction as endothermic or exothermic.
C2H5OH (1) + 3 O2 (g) → 2 CO2 (g) + 3 H20 (1)

What is the best way to compare a concentrated solution to a dilute solution, given the same volume of solution? a. the concentrated solution has less solute than the dilute solution. b. the concentrated solution has the same amount of solute as the dilute solution. c. the concentrated solution has more solute than the dilute solution. d. the concentrated solution has a different amount of solute than the dilute solution. e. the concentrated solution has the same amount of solute as the dilute solution.