Do Now After the bell (2 min) When the bell rings In your seat: With pen/pencil With Notebook With Handout Packet from last class on your desk Silent and ready for Do Now Still needs Do Now

Agenda  Do Now (5 min) Remediation Topic: Props of H2O Quiz (10 min) Warm Up (10 min) Notes: Ternary Ionic Compounds (15 min) Lab (25 min) Group Practice (15 min) Exit Slip (5 min) Closeout (2 min)

Remediation: Properties of H2O Earn your star for Properties of Water by scoring an 80% or better 10 Questions Answer all questions on the quiz No notes No sneaky eye

Forming and Naming Polyatomic Compounds Objectives: Predict the formation of Ternary Ionic compounds Using the nomenclature rules, name or predict formulas of compounds when given a Ternary Ionic compound

Guiding Question At the molecular level, explain the difference between and ionic and covalent compound

Ionic (Type 1 or Type 2) or Covalent Warm Up (5 Minutes) Formula Ionic (Type 1 or Type 2) or Covalent Name Ex: TiO2 AgBr Na3N PF5 Nickel (II) Sulfide Fill in the missing information

Vocabulary Ternary compound: A compound containing 3 elements; usually a metal and two non-metals Binary compound: A compound containing 2 elements; can be ionic or covalent Polyatomic Ion: A compound of two or more elements that has a charge associated with it Oxidation #: The charge an ion has as a result of bonding; how many electrons the ion wants to gain or lose

Commonly Confused Terms Formula: Shows the composition of a compound using symbols; what is in it and how much (a nickname) NaCl CO2 Name: what you call a compound (your birth name) Copper (II) Fluoride Dinitrogen Pentoxide Ion: the result of an ionic bond, expressed as

Ternary Ionic Compounds Usually follow this format: Metal + (Polyatomic Ion) Except NH4+ Contain two types of bonds Covalent: Holds the polyatomic ion together Ionic: Holds the metal to the polyatomic ion Also known as Polyatomic compounds Examples: (NH4)Cl Ba(SO4)

Polyatomic Ions You need to know Oxidation #

Naming Polyatomic Ions Example 1: K and (ClO2-) Name: Potassium Chlorite Example 2: Cu and (SO4-2) Name: Copper (II) Sulfate Rules: Name the metal as it appears on the periodic table Write the name of the ion Use Roman numerals for Transition Metals

Group Practice Naming Polyatomic Ions: 1. K(CN-) 2. Lead (II) Nitrate 3. (NH4)Cl 4. Li2CO3 5. Calcium Sulfate 6. Ag(NO3)

Group Practice Answers: Potassium Cyanide Pb(NO3)2 Ammonium Chloride Lithium Carbonate Mg(SO4) Silver Nitrate

Lab: Ionic v. Covalent compounds How What C – Level 2, in group only H – Group raises hand A – Observing properties of ionic and covalent compounds M – In group, 3 Total hall passes P – In lab area, following procedure and safety rules, wearing goggles, writing observations in data chart You must wear safety goggles Follow all safety protocols Your lab station must look exactly as you found it (I must check before you go back to your seats) We will discuss conductivity as a whole class

Observation when heated Lab Data Chart Compound Observations Dissolve? Y/N Observation when heated Conductivity Reading Prediction I or C A B C D

Post-lab discussion Based on their component elements, state whether each compound is ionic or covalent. Explain your reasoning. Based on these classifications and your data, describe the typical properties – odor, appearance, solubility in water, and conductivity in solution – of ionic and covalent compounds. Using the patterns established in this experiment and the information in your notes, predict the properties (odor, appearance, solubility in water, conductivity in solution) of carbon disulfide (CS2). Explain how you reached these conclusions. A: C6H5COOH B: MgCl2, C: Na2SO3 D: C12H22O11

Activity: Group Practice What? How? C – Level 2, on task discussion H – Raise hand A – Writing names and formulas of compounds M – None P – Recoding answers on left page, head up, reading and thinking through all questions, discussing with group For Section 1: Step 1: Identify each compound as: Type 1 Ionic Type 2 Ionic Covalent Polyatomic Step 2: Have me check, then name each compound Move on to Section 2

Exit Slip How? What? (5 min) C – No talking H – Raise hand A – Taking exit slip M – In seat P – Completing exit slip without notes and turning in If you finish early, summarize what you learned at the bottom of your notes OR answer today’s guiding question

Forgetting to stretch is a bear. Closing What are 3 key takeaways from today and yesterday? Complete the 20 Stretch questions