Balancing Chemical Equations

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Last updated 2:48 PM on 6/8/26
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6 Terms

1
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Step 1

Write down the symbolic equation

<p>Write down the symbolic equation</p>
2
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Step 2

Draw a line to separate the reactants on the LHS with the products on the RHS

<p>Draw a line to separate the reactants on the LHS with the products on the RHS</p>
3
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Step 3

  • Count the atoms on the LHS and the RHS

    • We do this by multiplying the coefficient (big number in front of the symbol) by the subscript (small number after the symbol)

      • If there is not a number, we assume that blank space is a 1

<ul><li><p>Count the atoms on the LHS and the RHS</p><ul><li><p>We do this by multiplying the coefficient (big number in front of the symbol) by the subscript (small number after the symbol)</p><ul><li><p>If there is not a number, we assume that blank space is a 1</p></li></ul></li></ul></li></ul><p></p>
4
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Step 4

  • Now we balance the equation

    • We cannot subtract, only add

    • To add more molecules, you can only change the coefficient INFROUNT of a molecule

<ul><li><p>Now we balance the equation</p><ul><li><p>We cannot subtract, only add</p></li><li><p>To add more molecules, you can only change the coefficient INFROUNT of a molecule</p></li></ul></li></ul><p></p>
5
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<p>Try this example</p>

Try this example

N₂ + 3H₂ → 2NH₃

6
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<p>Try this example</p>

Try this example