[jman92]

i can't seem to find a Lewis structure of nitrate to put in my chemistry paper

[sjb]

i can't seem to find a Lewis structure of hydroxide to put in my chemistry paper

GIYF - first document hit for "lewis structure hydroxide" (without quotes) gives

[Arkcon]

Start by drawing the structure, then count the electrons, what doesn't add up to 8 (2 depending), draw a dot.  Give it a try.

*[EDIT]*

Or do you want a cut n' paste graphic?  You can google like sjb: says, or write it with a draw program, or your word processors drawing function.  In my day, the prehistory of computers, you know, when they were run by dinosaur power, we just left plenty of space and drew it in by hand.

[AWK]

why not google:
Lewis structure nitrate