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Think of it like this.

O = C = O

There are three altogether. One carbon atom and two oxygen atoms. :D

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12y ago
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11y ago

This looks like the equation for the complete combustion of methane

CH4 + 2O2 -> CO2 + 2H2O

There are 4 oxygen atoms.

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10y ago

There are two oxygen atoms in a carbon dioxide molecule and one oxygen atom in a water molecule.

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11y ago

Multiply the coefficient (3) by the subscript (2) to obtain 6 total oxygen atoms.

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Wiki User

11y ago

3 carbon

6 oxygen

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Wiki User

6y ago

ten

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Q: How many oxygens atoms are in 3CO2 4H2O?
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