Question:   What is the difference between a double displacement reaction and an acid-base reaction?

Answer:

A double replacement reaction involves the cations of two ionic compounds switching places.  An acid-base
reaction is basically the same thing, except that water is formed from the reaction of the H⁺ in acids with the OH^- in bases.

For more information about how to tell the types of reactions apart from each other, click here.  For a practice worksheet, click here.