The chromebook if it did get something spilled in it is likely a goner (You can try a different power adapter and the basic things to try to reset it, but if it doesn't respond to any of that, the price of the labor involved likely exceeds replacing the chromebook itself). Post the model numbers of both the chromebook and the HP laptop though. You might get lucky with the HP finding a AC adapter at the lab that is the right brand, wattage, and connector. As for the password, if there's nothing on it, you can likely start a windows recovery by pressing a certain key when it comes up, but if there's data you need off it, other steps will need to be taken.