Practice Single Displacement in Chemistry

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

A chemical reaction in which a free (uncombined) element that is more reactive displaces and replaces a less reactive element within a compound, producing a.

A bully element kicks a weaker one out of its compound โ€” like a stronger player replacing a weaker one on a team.

Example 1

easy
Write the balanced equation for zinc metal reacting with hydrochloric acid.

Example 2

medium
Will copper react with silver nitrate solution? If so, write the balanced equation. (Activity series: Cu is above Ag.)

Example 3

easy
Will gold (Au) react with \text{CuSO}_4 solution? (Au is below Cu in the activity series.)

Example 4

hard
Zinc metal is placed in a copper(II) sulfate solution (\text{CuSO}_4). The solution gradually loses its blue color and a reddish deposit forms. Write the balanced equation and explain what the color changes indicate.