Simply select the word right-click select Convert to Chemistry Zone and then click on its name. You can also highlight the text in the equation and alter the font size and style as usual. For example Cocoa Butter Chocolate Liquor Sugar Lecithin and a flavoring agent makes a delicious item called Chocolate.
The arrow represents the reaction or change taking place.
You got some nice equilibrium arrows. Type 21cc then press ALT and X together no space after 21cc. Similarly a compound is made of several elements and an element is made of atoms. Now you can see the chemical form in the sidebar if you click the Chemistry Navigator button and can choose to insert the diagram into the document.