# What's the formula for potassium sulfate?

##### 1 Answer

Jun 5, 2018

#### Explanation:

Potassium:

Sulfate:

We can't just combine them as it is, since potassium and sulfate have different charges. We need to **equalize charges** by criss-crossing the charges, like this example:

Following this image, we know that since potassium has just **1 positive charge** , then there is just **1 molecule of sulfate**.

Also, sulfate has a **negative 2 charge**, so there will be **2 atoms of potassium**.

This can be written out as:

Hope this helps!