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How do i balance CO2 +H2O --> C6H12O6 + H2O


You start with water and end with water? Are you sure you copied that correctly?


It looks like your product should be glucose and O2. That's the reaction in production of glucose and oxygen from CO2 and water via photosynthesis in plants. The balanced equation is:

6CO2 + 6H2O --> C6H12O6 + 6O2

How to balance takes some practice... look at both sides of the equation and establish the count of each element.

1 C + 3 O + 2 H --> 6 C + 8 O + 12 H

To balance the carbons, you would need 6 CO2's on the left hand side, but that also changes the O count. So the count then becomes:

6 C + 13 O + 2 H --> 6C + 8 O + 12 H

The next obvious one is balancing H, you will need 6 H2O's on the left hadn side, which changes the O count further.

6 C + 18 O + 12 H --> 6C + 8 O + 12 H

Lastly, simply balance the oxygen on the right hand side to balance the O's by making adding 5 more O2's (10 O's) for a total of 6 O2's.

6 C + 18 O + 12 H --> 6 C + 18 O + 12 H

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have book? study it!


CO2+ H2O makes seltzer,carbonated water.

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