Single+Displacement+Andrew+Murphy


 * __Single Replacement__**
 * Definition**- is when a free atom becomes and ion an ion becomes a free element.
 * Generic Formula**-A+B-->AC+B

Zn+HCL-->ZnCl2+H2
 * Ex)**For example when zinc combines with hydrochloric acid, the zinc replaces hydrogen. The chemical equation for this single replacement reaction looks like:

BUT, The equation is not balanced so you have to put a 2 in front of the HCL because you need to balance that to the Cl2 and H2 on the product side of the equation. reactant + reactant -> product + product
 * The correct formula is:**