How to use LaunchPad and Mission Control on Mountain Lion with an external keyboard I am using an external (generic) keyboard.

I just switched from Snow Leopard to Mountain Lion.

On Snow Leopard, I could pull up Expose by pressing F2 on my external keyboard, but now I can't.

Is there a FN key (or a way to enable the right FN key) to show "Mission Control"?
Open System Preferences and click on "Mission Control". You'll see the keyboard shortcuts for expose and mission control at the bottom of this panel. 

For other keyboard shortcuts you can open the keyboard panel and then click on "keyboard shortcuts"