Game time in minutes and increment in seconds. 5 seconds is added to your clock every time you move; very useful in time scrambles. I'll get a chart of the time controls available (if I can find it)...
5/5 , 3/0 , 2/1 ....? what does that mean?


Here's an official explanation...
https://support.chess.com/article/445-how-do-the-time-controls-work-in-live-chess
and the promised time control chart
https://support.chess.com/article/330-why-are-there-different-ratings-in-live-chess
When I go to look at a tournament there are a bunch of number sets in front of the game type. what do they mean?
example : 5/5 blitz?