BSIP VEM / SCIENCE PHOTO LIBRARY BSIP VEM / SCIENCE PHOTO LIBRARY
Water molecule. Computer artwork of a water molecule. The red sphere represents an oxygen atom and the green spheres represent hydrogen atoms. A water molecule (H2O) consists of two hydrogen atoms and one oxygen atom. The bond angle between the hydrogen atoms is about 110 degrees. Water is essential to all life forms on Earth, and covers about 70% of our planet's surface.
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