Single and double displacement reactions

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Presentation transcript:

Single and double displacement reactions

Learning goals We are learning to identify single and double displacement reactions. We are learning to predict products of single and double displacement reactions.

Recall Most chemical reactions fall into the five families of reactions that we will be studying in our course: Synthesis Decomposition Single Displacement Double Displacement Combustion Today we will focus on single and double displacement reactions.

Reactivity Series of Metals Potassium Most Reactive Sodium Lithium Calcium Magnesium Aluminum Carbon Zinc Iron Tin Lead Hydrogen Copper Silver Gold Platinum Least Reactive single displacement reactions are governed by the reactivity series of metals a higher reactive metal will displace a lower reactive metal

Single Displacement Reaction Have the skeleton form: only happens if A is more reactive than B A + BC AC + B

Example #1 Given the word equation of the single displacement reaction below, determine the balanced chemical equation. Zinc + Hydrochloric Acid  Zinc Chloride + Hydrogen Gas

Solution Zn + 2 HCl H2 + ZnCl2 # R Atom # P 1 Zn 1 2 2 1 Cl 1 2 H 2

Double Displacement Reaction Have the skeleton form: AB + CD AD + CB

Example #2 Given the word equation of the double displacement reaction below, determine the balanced chemical equation. Iron (II) Sulfide + Hydrochloric Acid  Iron (II) Chloride + Hydrogen Sulfide

Solution FeS + 2 HCl FeCl2 + H2S # R Atom # P 1 Fe 1 1 2 Cl 2 1 S 1 1

Learning goals We are learning to identify single and double displacement reactions. We are learning to predict products of single and double displacement reactions.

Homework P.243 #3-5, 7, 8