Chapter 3, Problem 3.1VP

(a)

Interpretation Introduction

Interpretation: The balanced chemical equation describing the reaction that takes place in each of the given pair is to be stated.

Concept introduction: The chemical equation is said to be balanced when the number of atoms of chemical species on the reactant side is equal to the number of chemical species on the product side.

To determine: The balanced chemical equation describing the reaction that takes place in the given pair.

Answer to Problem 3.1VP

Solution

The balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(g\right)$

Explanation of Solution

Explanation

In the given pair, the two containers consist of the substances that are composed of elements X and Y are,

Figure 1

On the left side, the container consist of four X (red balls) and four Y (blue balls) that are irregularly scattered throughout the whole space suggesting that both elements are in a gaseous state.

On the right side, X and Y get combine to form XY molecules which are also shown as scattered molecules. This suggests that they are in a gaseous state. Therefore, the balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(g\right)$

(b)

Interpretation Introduction

To determine: The balanced chemical equation describing the reaction that takes place in the given pair.

Answer to Problem 3.1VP

Solution

The balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(s\right)$

Explanation of Solution

Explanation

In the given pair, the two containers consist of the substances that are composed of elements X and Y are,

Figure 2

On the left side, the container consist of four X (red balls) and four Y (blue balls) that are irregularly scattered throughout the whole space suggesting that both elements are in a gaseous state.

On the right side, X and Y get combine to form XY molecules which are arranged in a pattern suggesting that they are in a solid state. Therefore, the balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(s\right)$

(c)

Interpretation Introduction

To determine: The balanced chemical equation describing the reaction that takes place in the given pair.

Answer to Problem 3.1VP

Solution

The balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }{\text{2XY}}_2\left(g\right)+\text{2X}\left(g\right)$

Explanation of Solution

Explanation

In the given pair, the two containers consist of the substances that are composed of elements X and Y are,

Figure 3

Here, the left side of the container consist of four X (red balls) and four Y (blue balls) that are irregularly scattered throughout the whole space suggesting that both elements are in a gaseous state.

On the right side, one X and two Y get combine to form two molecules of ${\text{XY}}_{\text{2}}$ and two X remain in free state in the container which are also in the gaseous state, Therefore, the balanced chemical equation is,

$\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }{\text{2XY}}_2\left(g\right)+\text{2X}\left(g\right)$

(d)

Interpretation Introduction

To determine: The balanced chemical equation describing the reaction that takes place in the given pair.

Answer to Problem 3.1VP

Solution

The balanced chemical equation is,

${\text{4X}}_2\left(g\right)+4{\text{Y}}_2\left(g\right)\underset{}{\to }\text{8XY}\left(g\right)$

Explanation of Solution

Explanation

In the given pair, the two containers consist of the substances that are composed of elements X and Y are,

Figure 4

On the left side, the molecules of X and Y are present as ${\text{X}}_{\text{2}}\left(\text{red}\text{balls}\right)$ and ${\text{Y}}_{\text{2}}\left(\text{blue}\text{balls}\right)$. They both are irregularly scattered throughout the whole space suggesting that both are in a gaseous state.

On the right side, ${\text{X}}_{\text{2}}$ and ${\text{Y}}_{\text{2}}$ react to form $\text{XY}$ molecules which are also present in a gaseous state. Therefore, the balanced chemical equation is,

${\text{4X}}_2\left(g\right)+4{\text{Y}}_2\left(g\right)\underset{}{\to }\text{8XY}\left(g\right)$

Conclusion

1. a. The balanced chemical equation is,

   $\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(g\right)$

2. b. The balanced chemical equation is,

   $\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }\text{4XY}\left(s\right)$

3. c. The balanced chemical equation is,

   $\text{4X}\left(g\right)+4\text{Y}\left(g\right)\underset{}{\to }{\text{2XY}}_2\left(g\right)+\text{2X}\left(g\right)$

4. d. The balanced chemical equation is,

   ${\text{4X}}_2\left(g\right)+4{\text{Y}}_2\left(g\right)\underset{}{\to }\text{8XY}\left(g\right)$