I've tried practically everything. Keyboard is still acting weird. Why?

Keyboard is not responding well. It keeps disconnecting every time I press the Left Command Key. When I press the Spacebar, it presses the N key also. When I press Z, it also presses the Delete Key. Same with some of the keys, they press two buttons.
I've tried all the resets.
I've created a new Administrator account.
I tried deleting the Bluetooth.plist.
I've re-paired the keyboard with the iMac 6 times.
I've replaced the batteries with fresh ones twice (non-rechargable ones).
Everything in Universal Access like Slow Keys or Mouse Keys are off.
I've checked with Keyboard Viewer.
No other device is in the area that is using bluetooth. (So there's no interference at all)
I'm using an ethernet cable for internet. (So there's also no interference with WiFi)
The keyboard I'm using is the one that came with a 2010 iMac 27" (Wireless Keyboard)
I have never dropped this thing.
What is causing all of this?

Hi, Jaesarr -
The symptoms you describe can be caused by damage to the keyboard. This is often dirt or liquid contamination creating short circuits (cross-connecting two or more circuits) inside the keyboard.
The best way to check for that is to use a different, known-good keyboard. If the symptoms disappear when using the different keyboard, then you'll know that the source of the problem is the original keyboard itself. The issue then becomes whether to attempt repairs, or to replace it.

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