Double Replacement REaction
In a double replacement reaction, two things replace each other.
Both reactants must be ionic compounds (cation with anion).
Specifically, the two cations (metals) will change places.
A simplified example of this is compound AB reacts with compound CD to form compound CB and compound AD.
Color the image on your notes using the example provided above. Compound AB (Blue/Red) reacts with Compound CD (Orange/Green) [A and C switch] to form products compound CB (Orange/Red) and compound AD (Blue/Green).Element
Real World Example: Marble (CaCO3) reacts with acid rain (HNO3). This double replacement reaction will cause the marble to erode by creating Ca(NO3)2, water, and carbon dioxide.
Photo credit: http://study.com/cimages/multimages/16/double_displacement_reaction.png
Both reactants must be ionic compounds (cation with anion).
Specifically, the two cations (metals) will change places.
A simplified example of this is compound AB reacts with compound CD to form compound CB and compound AD.
Color the image on your notes using the example provided above. Compound AB (Blue/Red) reacts with Compound CD (Orange/Green) [A and C switch] to form products compound CB (Orange/Red) and compound AD (Blue/Green).Element
Real World Example: Marble (CaCO3) reacts with acid rain (HNO3). This double replacement reaction will cause the marble to erode by creating Ca(NO3)2, water, and carbon dioxide.
Photo credit: http://study.com/cimages/multimages/16/double_displacement_reaction.png