3.1.2 quiz: chemical equations\nin this reaction, how many moles of co2 would be produced when methane (ch4)…

3.1.2 quiz: chemical equations\nin this reaction, how many moles of co2 would be produced when methane (ch4) fully reacts with 6 moles of o2?\nch4 + 2o2 → 2h2o + co2\na. 3\nb. 6\nc. 12\nd. 2

3.1.2 quiz: chemical equations\nin this reaction, how many moles of co2 would be produced when methane (ch4) fully reacts with 6 moles of o2?\nch4 + 2o2 → 2h2o + co2\na. 3\nb. 6\nc. 12\nd. 2

Answer

Explanation:

Step1: Identify mole - ratio

From the balanced chemical equation $CH_4 + 2O_2\rightarrow2H_2O + CO_2$, the mole - ratio of $O_2$ to $CO_2$ is 2:1.

Step2: Set up proportion

Let $x$ be the number of moles of $CO_2$ produced. We know the number of moles of $O_2$ is 6. Using the mole - ratio $\frac{n_{O_2}}{n_{CO_2}}=\frac{2}{1}$, we have $\frac{6}{x}=\frac{2}{1}$.

Step3: Solve for $x$

Cross - multiply: $2x = 6\times1$. Then $x=\frac{6\times1}{2}=3$.

Answer:

A. 3