Which of the following statements about energy is false? Group of answer choices A reaction cannot be exothermic overall if activation energy is required. An atom in an excited state can return to its ground state by releasing visible light. Energy transferred into a system can also be transferred out of the system. A system is the most stable when it is at its lowest energy state. Energy can be defined as whatever is required to oppose a natural tendency.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

the dissolution of polymer can be thermodynamically described in 2 steps.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?