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.
Click on the 'Mailings' tab and select the 'Start Mail Merge' group. Then click 'Select Recipients.' In Word 2010, select the 'Mailings' tab and click 'Select Recipients.'. 13. Select 'Use Existing List' from the list of options. Navigate to the location of the Excel file, and double-click the file.