Question

Carbon burns in oxygen to form carbon dioxide according to the Law of Conservation of Mass. If the chemical reaction involves 24 g
of carbon and 16 g
of oxygen, what mass of carbon dioxide is formed?(1 point)
Responses

16 g

40 g

24 g

8 g

Answer 1

According to the Law of Conservation of Mass, the total mass of reactants equals the total mass of products. In this reaction, we have:

- Mass of carbon = 24 g
- Mass of oxygen = 16 g

The total mass of the reactants is:

\[
24 \, \text{g} + 16 \, \text{g} = 40 \, \text{g}
\]

This total mass will be equal to the mass of the carbon dioxide (CO2) formed. Therefore, the mass of carbon dioxide formed is:

\[
\text{Mass of CO2} = 40 \, \text{g}
\]

So the correct answer is **40 g**.