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Balance the equation by putting the correct number in front of each compound. You can work this out mathematically or by drawing pictures on a piece of paper like the videos.

Al + 02--> Al203 corrosion of aluminum

Balance The Equation By Putting The Correct Number In Front Of Each Compound You Can Work This Out Mathematically Or By Drawing Pictures On A Piece Of Paper Lik class=

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Answer:

4Al + 3O₂ —> 2Al₂O₃

The coefficients are: 4, 3, 2

Explanation:

__ Al + __ O₂ —> __ Al₂O₃

The above equation can be balance as illustrated below:

Al + O₂ —> Al₂O₃

There are 2 atoms of O on the left side and 3 atoms on the right side. It can be balance by writing 3 before O₂ and 2 before Al₂O₃ as shown below:

Al + 3O₂ —> 2Al₂O₃

There are 4 atoms of Al on the right side and 1 atom on the left side. It can be balance by writing 4 before Al as shown below:

4Al + 3O₂ —> 2Al₂O₃

Now the equation is balanced.

The coefficients are: 4, 3, 2

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