Which of the following statements is true about ions?

a.

they are formed as electrons move around inside the atom.

b.

cations and anions are always the exact same size.

c.

cations are negatively charged and anions are positively charged.

d.

cations are positively charged and anions are negatively charged.

Does this organism still meet the definition of a eukaryote ? why or why not?

Why there is no inductive reactance in dc circuits

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