Chemistry Examples

Find the Oxidation Numbers Na_2S_2O_4
Step 1
Since is in column of the periodic table, it will share electrons and use an oxidation state of .
Step 2
Since is in column of the periodic table, it will share electrons and use an oxidation state of .
Step 3
To find the oxidation state of , set up an equation of each oxidation state found earlier and set it equal to .
Step 4
Solve the equation for .
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Step 4.1
Add and .
Step 4.2
Add to both sides of the equation.
Step 4.3
Divide each term in by and simplify.
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Step 4.3.1
Divide each term in by .
Step 4.3.2
Simplify the left side.
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Step 4.3.2.1
Cancel the common factor of .
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Step 4.3.2.1.1
Cancel the common factor.
Step 4.3.2.1.2
Divide by .
Step 4.3.3
Simplify the right side.
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Step 4.3.3.1
Divide by .
Step 5
is using an oxidation state of .
Step 6
This is the full list of oxidation states for this molecule.