Monday, October 5, 2020

Double Displacement

General Chemistry Index

Where are we going with this? This page will assist in developing the ability to describe, classify, and give examples of various kinds of reactions: synthesis (i.e., combination), decomposition, single displacement, double displacement, acid/base, and combustion.

Double Displacement / Double Replacement
Two compounds break apart and rearrange, swapping how they are combined.

Double replacement occurs when there are multiple reactants that combine in a way that something in each reactant is replaced by something from the other reactant. In essence, parts each compound swap places.

Two things in different compounds swap places.

What this looks like:

AB + CD --> AC + BD


  • In double replacement, both of the the reactants and both of the products are compounds.

An example:

BaCl2 + Na2SO4 --> BaSO4 + 2NaCl

where the Ba and Na switch places. 

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