Double Replacement Reactions Notes and Practice

Evaluation/Assessment: Objective: Today I will be able to: Predict the products of a double replacement reactions using solubility rules Evaluation/Assessment: Formal assessment- analyzing student responses to the exam and exit ticket Informal assessment – monitoring student interactions as they complete the exam and practice Common Core Connection Make sense of problem and persevere in solving them Reason abstractly and quantitatively Demonstrate Independence

Lesson Sequence Evaluate: Warm – Up Evaluate: Review HW Explain: Double Replacement Notes Elaborate: Double Replacement Reaction Practice Evaluate: Exit Ticket

Warm-Up Predict the products and balance the equations for the reactions below: Zinc + Hydrochloric acid  Bromine + Potassium Iodide -->

Objective Today I will be able to: Predict the products of a double replacement reactions using solubility rules

Homework Finish the double replacement reaction practice

Agenda Warm – Up Review HW Double Replacement Reaction Notes Double Replacement Practice Exit Ticket

We will review the single replacement reaction problems Review HW We will review the single replacement reaction problems

Double Replacement Reaction Notes Predicting Products and States

What is a double replacement reaction? Two ionic compounds react to form two new ionic compounds; “switching partners” General Equation: AB + CD  CB + AD Examples: 3 CaCl2 + 2 AlN  2 AlCl3 + Ca3N2

Double Replacement Reactions Cations switch places with cations OR think of it as “metals switching with metals” 3 CaCl2 + 2 AlN  2 AlCl3 + Ca3N2

In double replacement reactions: If a gas, water, or precipitate is not formed, the reaction will not take place Determine and write states of products for double replacement reactions Gas(g) Precipitate (s) Aqueous solution (aq) Liquid (l)

Use solubility rules to determine the state of: MgSO4 (aqueous) AgCl (solid)

Predict the Products! Barium Chloride + Sodium Sulfate  BaCl2(Aq) + Na2SO4(Aq)  BaCl2(Aq) + Na2SO4(Aq) BaSO4(s) + 2NaCl(Aq)

Predict the Products Cobalt Chloride + Sodium Sulfate  CoCl2(aq) + Na2SO4(aq) → CoCl2(aq) + Na2SO4(aq) → CoSO4(aq) + 2 NaCl(aq) CoCl2(aq) + Na2SO4(aq) →No Reaction

Complete Double Replacement Practice Whatever you do not finish in class will be your homework

Exit Ticket Predict the products of the double replacement reaction below Be sure to include the states and balance the equation Sulfuric acid + Sodium hydroxide 