Problem: Enter the equation for the decomposition of water into its elements. Phase symbols are not graded.

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We are asked to write down the equation for the decomposition of water into its elements.

The chemical formula for water is H2O. It must therefore dissociate into two elements, Hydrogen and Oxygen


Recall that Hydrogen does not exist under normal conditions as one atom but two, hydrogen exists as a diatomic molecule, H2. This is also true for oxygen. It exists as a diatomic molecule, O2.

Now we write a chemical decomposition reaction:

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Problem Details

Enter the equation for the decomposition of water into its elements. Phase symbols are not graded.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Types of Chemical Reactions concept. If you need more Types of Chemical Reactions practice, you can also practice Types of Chemical Reactions practice problems.