single+displacement;+Z.Shea-Hill

This type of reaction occurs when one atom replaces another atom in a compound. The generic form is A+BC->AC+B. An example of a single displacement reaction is copper sulfate (CuSO4) reacting with iron (Fe) to form iron sulfate (FeSO4) and copper (Cu). Copper sulfate is Cu2(SO4) because sulfate's charge is -2. Iron sulfate is Fe2(SO4) for the same reason. Place your reactants on the left side of the arrow and your products on the right. Also, it helps to put parenthesis around the compounds. Cu2(SO4)+Fe->Fe2(SO4)+Cu.
 * Single Displacement**

Now we must balence this equation, use the table to count your atoms.

Cu2(SO4)+Fe->Fe2(SO4)+Cu __2__ **Cu** __1 1__ **(SO4)** __1__ __1__ **Fe** __2__

The copper on the product side is not equal to the reactant side. We must double the copper with a coefficient.

Cu2(SO4)+Fe->Fe2(SO4)+2(Cu) __2__ **Cu** __2__ __1__ **(SO4)** __1__ __1__ **Fe** __2__

Now we must balence the iron. Double the iron on the reactant side.

Cu2(SO4)+2(Fe)->Fe2(SO4)+2(Cu) __2__ **Cu** __2__ __1__ **(SO4)** __1__ __2__ **Fe** __2__

Voila! We are balenced!

Iron sufate copper

Both are created by this single replacement reaction.

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