How many atoms of Ar are in 4.3 moles of Ar?

The real answer is keeping the world healthy so we won’t die

The answer to your question is c. mitochondria.

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.

Dis the answer : ) good luck