Question

question 3 · 1 point
in the chemical equation 2 a + 3 b → c + 4 d, how many molecules of c can form if 6 molecules of a react?
select the correct answer below:
1 molecule
2 molecules
3 molecules
6 molecules

Explanation:

Step1: Identify mole - ratio

From the equation $2A + 3B
ightarrow C+4D$, the mole - ratio of $A$ to $C$ is $2:1$.

Step2: Set up proportion

Let $x$ be the number of molecules of $C$. We have the proportion $\frac{2}{1}=\frac{6}{x}$.

Step3: Solve proportion

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

Answer:

C. 3 molecules