Question

which of the following equations best represents the reaction shown in the diagram below?
6c + 3d → 6a + 3b
6c + 3d → 2a + b
2c + d → 2a + b
2c + d → a + b

Explanation:

Step1: Count the number of reactant particles

• Count the number of \(C\) (red) particles: There are 6 \(C\) particles.
• Count the number of \(D\) (green) particles: There are 3 \(D\) particles.

Step2: Count the number of product particles

• Count the number of \(A\) (blue) particles: There are 6 \(A\) particles.
• Count the number of \(B\) (yellow) particles: There are 3 \(B\) particles.

Step3: Simplify the equation

• Divide each coefficient in \(6C + 3D

ightarrow6A+3B\) by 3.

• We get \(2C + D

ightarrow2A + B\)

Answer:

\(2C + D
ightarrow2A + B\) (the third option)