Below is a thumbnail of a PDF which shows all the toolbars in Acrobat v5.x and Acrobat Reader 4.x. The shortcut key is listed next to each entry. Download the PDF version to view offline and print (PDF 136kb). To save it right click (for Mac hold down Control) and choose to Save. The PDF covers the these versions of Acrobat:
Note that there are on-screen buttons in the PDF to allow the user between viewing the screenshot images at 'actual size' and at 100% zoom.
Abobe have used a slightly atypical method of docking toolbars. See a short Viewlet of how you dock and undock v5's toolbars.