Chapter 3, Problem 1E

The reaction between reactant A (blue spheres) and reactant B (red spheres) is shown in the
following diagram

Based on this diagram, which equation best describes the reaction? [Section 3.1D
b. $A2+4B-2АВГ$
c. $2A-B4-2АВГ$
d. $A+B2-AB2$

Interpretation Introduction

To determine: The equation that best describes the reaction shown in the given diagram.

Answer to Problem 1E

Solution: The equation (a) ${\text{A}}_{\text{2}}+\text{B}\to {\text{A}}_{\text{2}}\text{B}$ best describes the depicted reaction.

Explanation of Solution

Given

The reaction diagram,

Figure 1 The blue spheres represent the reactant $\text{A}$ .

The red spheres represent the reactant $\text{B}$ .

As depicted in the given diagram, A or blue spheres are present as diatomic molecules ${\text{A}}_{\text{2}}$ and B or red spheres are present in elemental form.

4 molecules of A, ${\text{A}}_{\text{2}}$ reacts with 4 atoms of B to form 4 molecules of compound ${\text{A}}_{\text{2}}\text{B}$ .

The reaction will be:

  $4{\text{A}}_{\text{2}}+4\text{B}\to {\text{4A}}_{\text{2}}\text{B}$

Taking coefficients common,

  ${\text{A}}_{\text{2}}+\text{B}\to {\text{A}}_{\text{2}}\text{B}$

Conclusion

The equation that best describes the depicted chemical reaction is (a) ${\text{A}}_{\text{2}}+\text{B}\to {\text{A}}_{\text{2}}\text{B}$ .