Chapter 9.2, Problem 34SSC

Interpretation Introduction

Interpretation:

Whether the following reaction can takes place or not needs to be explained.

$\text{3Ni}+2{\text{AuBr}}_{\text{3}}\to 3{\text{NiBr}}_{\text{2}}+2\text{Au}$

Concept introduction:

In a single-displacement reaction, the displacement of atom of an element by the atoms of another element takes place. The displacement depends upon their reactivity. One example showing this type of reaction is as follows:

$\text{A}\text{+}\text{BX}\to \text{AX}\text{+}\text{B}$

Answer to Problem 34SSC

The reaction will occur.

Explanation of Solution

The given reaction is an example of single displacement reaction.

$\text{3Ni}+2{\text{AuBr}}_{\text{3}}\to 3{\text{NiBr}}_{\text{2}}+2\text{Au}$

Now, whether this reaction is correct or not is to be determined. Nickel is placed above than gold in the activity series of metals. So, nickel (Ni) can replace Gold (Au) from the ${\text{AuBr}}_{\text{3}}$. This indicates that the given reaction is correct.

Conclusion

Highly reactive metal displaces less reactive metal from a compound.