Which atom is most likely to accept electrons to form an ionic bond? A. a mercury ion with a negative 2 charge
B. a potassium ion with a negative 1 charge
C. radon, a noble gas with 8 valence electrons
D. sulfur, a nonmetal with 6 valence electrons

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final