CHEMICAL REACTIONS 8.4 - Types of Reactions
CHEMICAL REACTIONS
8.4 - Types of Reactions
Double replacement reactions
A detailed look at:
HHSO4 (aq) + NaCl
(aq) 
HCl (g) + NaHSO4
(aq)
This is a double replacement reaction because the ions in compounds AB and CD switch partners. The driving force behind this reactio is the formation of a gas, HCl (g).
Section
9.1
Double-Replacement
Reactions
..p230