Question

What is a double replacement reaction? How are they different between single replacement reactions?

Answer 1

The clue lies in the name itself.

Explanation:

Double displacement reactions occur when two ionic compounds react, or when an ionic compound reacts with an acid. It only occurs in liquids.

There are 5 types of double displacement reaction, as shown below:

Salt + salt = insoluble salt + salt
Acid + carbonate = salt + H2O + CO2
Acid + base = salt + H2O
Ammonium + hydroxide = salt + H2O + NH3
Acid + sulfite = salt + H2O + SO2

Meanwhile, single-displacement is when one substance from the product switches places with the reactants.

Simple, yes?