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.
Send Out A Search Party. 1  In Windows: click Start, Search, All Files and Folders. 2  Type what you remember of the name or simply *.doc to get all your Word documents.  Select My Computer under Look in, and then under More Advanced Options, make sure Search Hidden Files and Folders is checked.