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Note: This is a reaction between copper II sulfate and aluminum. The copper is called “copper II” because copper can make different types of ions. It can lose one electron and be just Cu + or it can ...
This type of copper ion is called copper II. The “sulfate” in copper II sulfate is also an ion. This ion is made up of more than one atom. It is one of the polyatomic ions discussed in Chapter 4, ...
Note that the removal of water from hydrated copper(II) sulfate requires heat, and so is an endothermic process. The reverse process (the addition of water to anhydrous copper(II) sulfate) is an ...
The leftover copper(II) oxide solid can be filtered from the solution, leaving the copper(II) sulfate and water behind. The water can be removed by evaporation, leaving behind pure copper(II) sulfate.
Copper sulfate has been used in agriculture since the 1800s, at least. In the U.S. it is widely used as a fungicide on organic and conventional crops, and it is also found in some fertilizer products.
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