Phosphoric acid is heated with a sodium halide to make the hydrogen halide and sodium phosphate. It is used to react with rust to make black iron(III) phosphate, which can be scraped off, leaving pure iron.
Select an entire document by using the mouse. To select the entire contents of the document body, do one of the following: On the Home tab, in the Editing group, click Select, and then click Select All. Move the pointer to the left of any text until it turns into a right-pointing arrow, and then triple-click.
On the Word menu, click Preferences. In Word Preferences, click AutoCorrect. On the AutoCorrect tab, and then click Exceptions. Click Other Corrections, and then type the word that you want AutoCorrect to ignore in the Don't correct box. Click the plus sign to add the word to the list..