Balancing Chemical Equations.

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https://www.youtube.com/watch?v=vxCyzR6uETs&ab_channel=Freesciencelessons

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What does a balanced equation look like.

It has the same amount of atoms on both sides.

<p>It has the same amount of atoms on both sides.</p>
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How do you balance the equation sodium + iodine → sodium iodide.

Na + I2 → NaI

On left hand, we have 1 atom of sodium and on right we also have 1 sodium atom.

On left hand, we have 2 atoms of iodine, but only 1 on the right.

We can place a 2 on the right hand side to get 2 atoms of iodine, which also gives us 2 atoms of sodium

We can fix this by adding another 2 infront of the sodium on the left side.

<p>Na + I2 → NaI</p><p>On left hand, we have 1 atom of sodium and on right we also have 1 sodium atom.</p><p>On left hand, we have 2 atoms of iodine, but only 1 on the right.</p><p>We can place a 2 on the right hand side to get 2 atoms of iodine, which also gives us 2 atoms of sodium</p><p>We can fix this by adding another 2 infront of the sodium on the left side.</p>
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Method for balancing

Check each atom at a time, and write down how much are on left and right, then balance after.

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