Water Chemistry Quiz: Test your knowledge about the properties, composition, and importance of H2O in the natural world and living organisms. Explore the chemical formula and characteristics of this essential inorganic compound.

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Questions and Answers

What is the chemical formula of water?

H2O

What percentage of the Earth's surface is covered by water?

71%

What is the angle between the hydrogen atoms and the oxygen atom in a water molecule?

104.45°

What is the name of the liquid state of H2O at standard temperature and pressure?

<p>Water</p> Signup and view all the answers

In what states does water exist on Earth due to its relatively close environment to the triple point?

<p>Solid, liquid, and gas</p> Signup and view all the answers

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Study Notes

Chemical Composition and Structure of Water

The chemical formula of water is H2O.
In a water molecule, the angle between the hydrogen atoms and the oxygen atom is 104.5 degrees.

Occurrence and States of Water on Earth

Water covers approximately 71% of the Earth's surface.
Due to its relatively close environment to the triple point, water exists on Earth in three main states: solid (ice), liquid (water), and gas (water vapor).