S.Henry+Single+Diplacement

=SINGLE DISPLACEMENT=

In a single replacement reaction a single uncombined element replaces another in a compound. Two reactants yield two products.

For example when zinc combines with hydrochloric acid to form Zinc Chloride & hydrogen gas.

To turn this into a equation you have to find the symbol for zinc(Zn) & hydrochloric acid (HCl) then you draw an arrow and write the symbol for Zinc Chloride(ZnCl) & hydrogen gas(H2).

The chemical equation for this single replacement reaction looks like: Zn + HCl -> ZnCl + H2.

To balance the equation you make a chart to show the amount of elements on each side: 1 Zn 1 1 H 2 1 Cl 1

To balance this equation you add a 2 to the HCl & then a 2 to the Cl on the right so that both hydrogens have 2 and both Cl also have two: 1 Zn 1 2 H 2 2 Cl 2

The end equation should look like this:

S. Henry Reaction Teaching Wiki