Question

When carbon an oxygen combine chemically, the mass of the product is....

Answer 1

Answer:The correct answer is option (2).

Explanation:

According to Law of Conservation of Mass , mass can neither be created nor be destroyed.

In a balanced chemical equation of reaction , the mass of the reactant is always equal to the mass of the products. As we can observe this law in the chemical reaction between carbon and oxygen.

$C+O_2\rightarrow CO_2$

Total mass of reactant = 12 g/mol + 32 g/mol = 44 g/mol

Total mass of products = (12 g/mol + 2 × (16 g/mol)) = 44 g/mol

Since,the law of conservation of mass is justified by the above reaction .Hence ,the correct answer is option (2).

Answer 2

Answer:

Option 2 is correct. When carbon and oxygen combine chemically, the mass of the product is equal to the mass of Carbon plus the mass of Oxygen.

Explanation:

According to the law of mass conservation mass cannot be made or destroyed during the chemical reaction.

Here in the reaction 1mol of carbon and 2mol of oxygen react to form 1mol of carbon dioxide.

$\rm \bold {C+O_2 \rightarrow CO_2}$

$\rm \bold {12g/mol+32g/mol\rightarrow12g+2\times 16g/mol }\\\rm \bold{44g/mol\rightarrow 44g/mol}$

On both sides the mass is equal.

Therefore we can say that when carbon and oxygen combine chemically, the mass of the product is equal to the mass of Carbon plus the mass of the oxygen.

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https://brainly.com/question/24996173?referrer=searchResults