If you have a US keyboard, you don't need to remember all those codes.
The accents for all the Western European languages have keyboard
shortcuts built into Word. For an acute accent, type
Ctrl-' (apostrophe) followed by the letter (l.c. or capital); for a
grave, Ctrl-` (next to the 1 key); for a tilde, Ctrl-~ (shift-`); for
the circumflex, Ctrl-^ (shift-6); for the dieresis/umlaut, Ctrl-:
(colon); for the cedilla, Ctrl-, (comma). (And there are specific ones
for the other letters in French, German, and Scandinavian -- double-s,
ae, oe, slashed-o, crossed-d.)