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Double Displacement Reaction

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by

Olivia Walters

on 15 January 2016

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Transcript of Double Displacement Reaction

Double Displacement Definition
A chemical reaction that
involves two molecules
reacting with each other,
then exchange one
component to form the
product.
AB+CD-->AC+BD
Formula

A marble statue eroded by acid rain
Everyday Examples
In ancient Egypt, Rome, and China, soap was made using double displacement. For example, this is the chemical formula for soap in ancient China:
Double Displacement Before Modern Technology
Slaked lime is an example of a double displacement. Slaked lime, calcium hydroxide, can used for white washing walls. It creates a shiny finish on the wall by reacting with the carbon dioxide in the air (Ca(OH)2 + CO2--->CaCO3 + H2O). Calcium hydroxide can also be seen in:
hair relaxers
pesticides
life support systems
Double Displacement in Modern Technology
1. What is the general formula for double displacement?
2. How many molecules are involved in a double displacement?
3.What makes a reaction a double displacement?
4. What's an example of double displacement?
5.Think of your own analogy of double displacement.
Post-Presentation Quiz
1. AB+CD--->AD+BC
2.Two
3.The molecules exchanging chemicals .
4.Marble and acid rain, baking a cake, or purifying water (or your own example).
5.Anything similar to the penguin and pig or high school musical analogy.
Post-Presentation Quiz Answers
Online Sources
Thank You for Watching
Double Displacement Reaction

By Olivia Walters
CaCO3 + 2HNO3--->Ca(NO3)2 + H2O + CO2

NaHCO3+HA--->NaA+H(HCO3)
Baking soda mixing with an acidic substance, for example in cake batter
Taking magnesium out of seawater to purify it into drinking water
MgCl2 + 2NaOH--->Mg(OH)2 + 2NaCl
K2CO3+Ca(OH)2--->CaCO3+2KOH
"Our Objective." Double Displacement Reaction (Theory) : Class 10 : Chemistry : Amrita Online Lab. N.p., n.d. Web. 14 Jan. 2016.
"Double Replacement." Chemistry's Most Wanted -. N.p., n.d. Web. 14 Jan. 2016.
"History." Double Replacement. N.p., n.d. Web. 14 Jan. 2016.
Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21.
+
--->
+
Full transcript