In Word 2010, I have an equation object that wraps at the end of a line. Is there a way to stop it from wrapping? (Since it's an equation object, I can't just use a no break space like would be normal for text.)
The equation wraps when it won't fit in the margins of the page. Assuming there is enough room on the page for the equation, you can adjust either the margins, or the left and right indent.
Alternatively, you can use the paragraph dialog to set the margins directly. This might be useful if you have a number of equations to fix this way and want them to all have the same settings. Dragging on the ruler in this case can be a bit fiddly.