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.
Once again the hover over gives you the example of the option, in the document. so you can decide what type before pasting it. In Word, File, Option, then the Advanced area, you will find an entire section on. various settings in Word up to deal with Cut, Copy & Paste. I have mine set to Merge Formatting so I never have to worry about it changing. Be sure to click OK to make any changes.