C. sarcasm is stating something you may not mean in a "funny" or sarcastic way. <span />
It's a salt of carbonic acid. it's called sodium bicarbonate. It contains the anion HCO3. It usually refers to bicarbonate of soda (baking soda), a white powder that is a common ingredient in antacids. It is also a byproduct of your body's metabolism.
Running a race is as hard as a cat trying to speak English.
