Predicting Products: Synthesis and Decomposition Reactions

Evaluation/Assessment: Objective: Today I will be able to: Predict the products of reactions for single replacement, double replacement, decomposition, and synthesis reactions Evaluation/Assessment: Informal assessment: listening to group interactions as students complete the practice sheets Formal Assessment: Analyze Student Responses as they complete the practice worksheets Common Core Connection Build Strong Content Knowledge Make sense of problem and persevere in solving them Use appropriate tools strategically Look for and express regularity in repeated reasoning

Lesson Sequence Evaluate: Warm – Up Evaluate: Review Single and Double Replacement Reaction Practice Elaborate: Double Replacement Practice Explain: Predicting Products of Synthesis and Decomposition Reactions Elaborate: Mixed Predicting Products Practice Evaluate: Exit Ticket

Warm - Up Predict the products of the following double replacement reaction: HCl + NaOH 

Objective Today I will be able to: Predict the products of reactions for single replacement, double replacement, decomposition, and synthesis reactions

Homework Finish Mixed Practice

Agenda Warm-Up Review Single and Double Replacement Reactions Practice Double Replacement Practice Predicting Products of Synthesis and Decomposition Reaction Notes Predicting Products Practice Exit Ticket

Review Double and Single Replacement Reaction Practice What questions do you have about the practice worksheets? Are there any problems you would like to review?

Double Replacement Practice Complete the practice at your desk. Copy the problems onto a sheet of paper. Ms. Ose will collect this worksheet and grade it for accuracy.

Double Replacement Practice Aluminum Iodide + Mercury (II) Chloride  Silver Nitrate + Potassium Phosphate  Copper (II) Bromide + Aluminum Chloride  Calcium Acetate + Sodium Carbonate  Ammonium Chloride + Mercury (I) Acetate 

Double Replacement Practice Cont. Calcium Nitrate + Hydrochloric Acid  Iron (II) Sulfide + Hydrochloric Acid  Copper (II) Hydroxide + Acetic Acid  Calcium Hydroxide + Phosphoric Acid  Calcium Bromide + Potassium Hydroxide 

Predicting Products of Synthesis and Decomposition Reactions

Synthesis Reactions Elements or simple compounds are combined to form ONE product Combine elements and criss-cross the charges Examples Cu(II) + S  CuS 4 Na + O2  2 Na2O

Decomposition Reactions If TWO elements (binary compound) are present in the original compound, just break it apart into two elements 2 HCl  H2 + Cl2

Decomposition Reactions If THREE elements (ternary compound) are present, determine if one of them is a HALOGEN If one element is a halogen, then the halogen and the metal stick together and oxygen gas is produced 2 KClO3  2 KCl + 3 O2

Decomposition Reactions If there are no halogens present, then a metallic oxide and a gas with 1 less oxygen than the polyatomic ion is produced CaCO3  CaO + CO2

Predicting Products Practice Complete the practice at your desk. Whatever you do not finish will become your HW.

Exit Ticket Predict the products of the reactions and balance the equations __ Na2CO3  __ Mg + __ N2 