Well, you might’ve heard foods with carbohydrates are sometimes referred to by the abbreviation “carbs". If you know carbs are food, it’s obvious the word starting in “carb-” is the edible one.
If you weren’t familiar with that abbreviation, here’s another memory helper: Spaghetti carbonara contains carbs.
If you’re also not familiar with spaghetti carbonara, I’m very sorry for you.
But spaghetti also needs water so wouldn’t that make it a hydrocarbonara?
Don’t cars have carborators? Are carborators edible?
I don’t know anything about cars except they go vroom. I know even less about chemistry.