The tools are opened on the bottom of the chrome window per default. This is a rather bad choice for a wide screen display since there is plenty of empty space to the right
CTRL+SHIFT+D
And there are many shortcuts you can see them by going to
Settings » Shortcuts, as displayed here:
Alternatively, use CTRL + ? to go to the settings, from there one can reach the "Shortcuts" sub-item on the left or use the Official reference.