All samples of carbon dioxide contain carbon and oxygen in the weight ratio of 3:8. This fact is in agreement with:

the law of conservation of mass

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the law of definite proportions

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the law of multiple proportions

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the law of conservation of energy

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Solution

The correct option is A the law of definite proportions
In $C O_{2}$ , 12 g of carbon combines with 32 of oxygen.
$\frac{12}{32} = \frac{3}{8} = 3.8$
Therefore, weight ratio of carbon to oxygen is $3 : 8$ . This is in agreement with the law of definite proportion.

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All samples of carbon dioxide contain carbon and oxygen in the weight ratio of 3:8. This fact is in agreement with:

The correct option is A the law of definite proportionsIn CO2, 12 g of carbon combines with 32 of oxygen.1232=38=3.8Therefore, weight ratio of carbon to oxygen is 3:8. This is in agreement with the law of definite proportion.

The correct option is A the law of definite proportions
In $C O_{2}$ , 12 g of carbon combines with 32 of oxygen.
$\frac{12}{32} = \frac{3}{8} = 3.8$
Therefore, weight ratio of carbon to oxygen is $3 : 8$ . This is in agreement with the law of definite proportion.