MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Ethanoic acid, molecular model. Also called acetic acid, this carboxylic acid found in vinegar gives it its sour taste and pungent smell. It is also used as a preservative and in the production of plastics. This model shows the atoms (spheres) connected by bonds (rods). One double bond is present. The atoms are colour-coded: carbon (black), oxygen (red), and hydrogen (white).
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