# What is an example of a metal activity series practice problem?

Jun 24, 2018

Here is a common question with single replacement reactions:

#### Explanation:

Given: Zn(s)+H2SO4(aq)→ZnSO4(aq)+H2(g)

$\textcolor{p u r p \le}{\text{Can this reaction take place?}}$

Well, let's see:

In this equation, we need to see if $Z n$ can replace ${H}_{\text{2}}$.
If an element is $\textcolor{p u r p \le}{\text{higher}}$ on Table J than the element it is attempting to replace, then the reaction can happen.

So, is Zn higher than H?
$\textcolor{b l u e}{\text{Yes!}}$

Therefore, this reaction can happen.

Another question may ask something like:
Which element can NOT replace ${H}_{\text{2}}$?

The answer has to be something lower on the table (less active) than Hydrogen. The only viable answers are $C u , A g , A u$.

Hope this helps!