Your keyboard language configuration is set the first time you log into your Chromebook. As we are in America, the default language is set to English (United States) and your keyboard to US Keyboard. If it is not, or you would like to change your keyboard language, then you can do so by following these steps:
Click the status area in the bottom-right of your desktop.
The settings panel appears.
Select KEYBOARD and you will see a dropdown menu.
Select "US English (US)" and you have reset it to the default.