By default, Word only shows these characters when you click the "Show/Hide" (¶) icon in the Home tab on the ribbon or press Ctrl+Shift+8. Click the same icon (or use the same keyboard shortcut ...

It would be clearer with symbols instead of words. Instead of using the word campsite, we could use the symbol for campsite. And instead of writing car park, we could use the symbol for car park.

Symbol equations are a quick way of representing chemical reactions. They show us what atoms are involved and how they are bonded together. Symbol equations always take the form, reactants → ...