The reactants of a certain chemical reaction contain 26 kJ of potential energy, and the products contain 41 kJ. How much energy is released or
absorbed by the reaction?
A. 15 kJ is absorbed.
B. 67 kJ is released.
C. 15 kJ is released
O D. 67 kJ is absorbed.
SUBMIT

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up