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