Answers

2015-07-14T21:01:49+08:00
Water is a compound with two different elements.
In water, there is 1 hydrogen atom and 2 oxygen atoms

water = 1 hydrogen + 2 oxygen

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2015-07-17T14:14:16+08:00
Water is made up of
Hydrogen
And
Oxygen
So it is called H2O because 2 Hydrogen atoms and only 1 Oxygen atom
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