Mitosis and chromosome question?

I have a test tomorrow and I'm a little confused about the cell cycle. My text books says that a parent cell forms two daughter cells. Does that mean, at the end of mitosis, there are 2 cells total or 3 cells? Is it a parent cell dividing one half, therefore resulting in two cells, or parent cells making two daughter cells, resulting in 3 cells? I think it's a parent cell dividing in half, resulting 2 cells total but I'm not sure if I'm right. Also, if there is 5 pairs of chromosomes, it means that there are 10 chromosomes each.. So during S phase, the chromosomes replicate resulting in 10 pairs of chromosomes, (20 chromosomes each). and then at the end of mitosis, those 20 chromosomes divide, so that there are 10 chromosomes for each cell. Right?? And is there different number of chromosomes depending on what type of cell it is?