The noble gases include helium, neon, argon, xenon. What do their electron configurations have in common? Answer choices:
a- In the highest occupied energy level, the s sublevel is filled and the p sublevel is empty.
b- In the highest occupied energy level, the p sublevel is half-filled.
c- In the highest occupied energy level, the s and p sublevels are completely filled.
d- In the highest occupied energy level, the s sublevel has one electron.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)