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Monday – September 8, 2003 Do Now … Date: October 31, 2016 Objective: Name binary ionic compounds. Add ionic charges to your Periodic Table: Quick practice … Classify as ionic or covalent: 2+ CaCl2 H2O KI NaCl Ca Ionic compounds = Metal and a NonMetal Covalent compounds = NonMetal and a NonMetal October 31, 2016 Today: Intro to Naming and Practice – Binary Ionic Compounds HW: Naming Worksheet: Set A – B Quiz tomorrow (short) Metal, Metalloid, or Non-Metal? H Ca Si Al B Cu All about ions. When an atom loses or gains electrons, ions are formed. Na Na+ + e- Cl + e- Cl- Na Na+ Ion Formation Cl Cl- http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm Cations Cations have a positive charge. Their name does not change. Think Ca2+ calcium ion ca ion Li1+ lithium ion + Al3+ aluminum ion Anions Anions have a negative charge. Their name ends in –ide. Think S2- sulfide ion a-n-ion F1- fluoride ion a negative ion P3- phosphide ion O2- oxide ion Practice What will the charge (or oxidation number) be for the ions of: Ca +2 S -2 Ne Zero or No Charge Se -2 Ba +2 O -2 Ionic Compounds Metal + Nonmetal Key concept: - charge must balance (net charge = 0) -------------------------- Naming Binary Ionic Compounds 1. Is it ionic or molecular (covalent)? CaCl2 Ionic (metal + nonmetal) Naming Binary Ionic Compounds 2. Is the metal a transition metal? CaCl2 Naming Binary Ionic Compounds 3. Write the cation name … CaCl2 calcium Naming Binary Ionic Compounds 4. … followed by the anion. The anion should have the –ide ending. CaCl2 calcium chloride Naming Binary Ionic Compounds Try this one. LiBr lithium bromide Naming Binary Ionic Compounds Another. MgF2 magnesium fluoride Naming Binary Ionic Compounds Practice BaS barium sulfide Na2S sodium sulfide KCl potassium chloride aluminum fluoride AlF3 Practice Practice Set A and B on worksheet. Practice with Ions What will the charge (or oxidation number) be for the ions of: Na +1 K +1 He Zero or No Charge Al +3 Mg +2 O -2 Don’t be like this cat… ----------------------------------- Do Now … Date: November 1, 2016 Objective: Name binary ionic compounds containing transition metals. Name or write chemical formula: CaCl2 KI magnesium sulfide Na2O calcium bromide sodium sulfide Tuesday, November 1, 2016 Today: Naming and Practice – Binary Ionic Compounds HW: Naming Worksheet: Set C - D Do Now … Na Na+ Ion Formation Cl Cl- http://library.tedankara.k12.tr/chemistry/vol1/redox/trans53.htm Cations Cations have a positive charge. Their name does not change. Think Ca2+ calcium ion ca ion Li1+ lithium ion + Al3+ aluminum ion Anions Anions have a negative charge. Their name ends in –ide. Think S2- sulfide ion a-n-ion F1- fluoride ion a negative ion P3- phosphide ion O2- oxide ion Practice with Ions What will the charge (or oxidation number) be for the ions of: Na +1 K +1 He Zero or No Charge Al +3 Mg +2 O -2 Homework Key: Set A Key: Binary Ionic 1) magnesium sulfide 11) potassium sulfide 2) potassium bromide 12) lithium bromide 3) barium nitride 13) strontium phosphide 4) aluminum oxide 14) barium chloride 5) sodium iodide 15) sodium bromide 6) strontium fluoride 16) magnesium fluoride 7) lithium sulfide 17) sodium oxide 8) radium chloride 18) strontium sulfide 9) calcium oxide 19) boron nitride 10) aluminum phosphide 20) aluminum nitride Homework Key: Set B Key: Binary Ionic 1) MgO 2) LiBr 3) Ca3N2 4) Al2S3 5) KI 6) SrCl2 7) Na2S 8) RaBr2 9) MgS 10) AlN If there’s a transition metal… FeCl3 Transition metals can have more than one charge. For example, the Fe ion can be either Fe2+ or Fe3+ If there’s a transition metal… FeCl3 Find the charge on Cl. The Fe must be able to balance this charge. iron (III) chloride If there’s a transition metal… FeBr2 iron (II) bromide If there’s a transition metal… FeO iron (II) oxide If there’s a transition metal… Fe2O3 iron (III) oxide Remember… The net charge for a neutral compound must be zero. I know, it’s hard work … Practice … copper (II) chloride CuCl2 barium fluoride BaF2 BeS beryllium sulfide AlBr3 aluminum bromide MnO manganese (II) oxide HW - Set C Key Set C Key: Formula to Name (Transition Metals) 1) copper (II) sulfide 2) lead (IV) bromide 3) lead (II) nitride 4) iron (III) oxide 5) iron (II) iodide 6) tin (IV) phosphide HW - Set D Key Set D Key: Formula to Name (Transition Metals) 1) FeCl2 2) Cu2S 3) PbI4 4) SnF2 5) Hg2Br2 6) SnO Do Now … Date: November 2, 2016 Objective: Name molecular compounds. Name or write chemical formula: FeCl2 FeCl3 lead (II) sulfide iron (II) bromide copper (II) oxide Wednesday- November 2, 2016 Today: W-Up, Computer Lab, Activity: Naming Ternary Compounds HW: Complete WS: Set E – F Ionic or Molecular? NH3 H2O MgCl2 Na2SO4 KI C6H11O12 C2H6 N2 Molecular Compounds nonmetal bonded to nonmetal CO2 H2O N2O5 Molecular Compounds Use prefixes to show number of atoms of each element. CO2 carbon dioxide H2O dihydrogen monoxide N2O5 dinitrogen pentoxide Prefixes mono = 1 di = 2 tri = 3 … Note: CO is carbon monoxide, not monocarbon monooxide Prefixes Practice SF6 - sulfur hexafluoride boron trifluoride - BF3 dinitrogen tetraoxide - N2O4 silicon dioxide - SiO2 Cl2O7 - dichlorine heptaoxide SiS2 - silicon disulfide K3N - potassium nitride --- Yesterday … Learned to name binary ionic compounds when given the chemical formula or name. Remember … The charges on the ions are the key. Net Charge In neutral compounds the net charge is zero. The charges on the individual atoms will add up to zero. So… calcium fluoride Charge on a calcium ion is +2 Charge on a fluorine ion is -1 So the formula is CaF2 . And … Iron (II) iodide Charge on a iron (II) ion is +2 Charge on a iodine ion is -1 So the formula is FeI2 . Try these … barium sulfide BaS cesium fluoride CsF calcium oxide CaO copper (I) oxide Cu2O iron (III) oxide Fe2O3 Name the following compounds… 1. copper (II) sulfate CuSO4 2. CaBr2 calcium bromide 3. FeCl2 iron (II) chloride 4. BF3 boron trifloride – we’ll learn more next week 5. barium nitride Ba3N2 6. chloride ion Cl- 7. Na+ sodium ion ----------------------------------- - ---------------------------------- Do Now … Date: November 3, 2016 Objective: Name ternary compounds. Thursday, November 2, 2016 Today: Computer Lab: Naming Practice, Notes & Practice Date: November 3, 2016 Objective: Name chemical compounds. Copy and name: copper (II) chloride CuCl2 BaF2 barium fluoride BeS beryllium sulfide AlBr3 aluminum bromide MnO manganese (II) oxide Ternary Ionic Compounds Ternary ionic compounds have three or more different elements. Usually made up of a metal attached to a polyatomic ion. Ternary Ionic Compounds You will be given a list of polyatomic ions to use in class and on tests. Polyatomic Ions Cyanide ion: CN- - Nitrate ion: NO3 A few more polyatomic ions … 2- Sulfate ion: SO4 3- Phosphate ion: PO4 -ate vs. -ite Nitrate Ion Nitrite Ion Sulfate Ion Sulfite Ion -ate vs. -ite Remember: 2- -ate is greater: SO4 is sulfate 2- -ite is just a bite. SO3 is sulfite -ate has one more O than -ite Naming Ternary Compounds magnesium sulfate magnesium has a +2 charge 2- the sulfate ion (SO4 ) has a -2 charge MgSO4 Naming Ternary Compounds copper (II) nitrate copper (II) has a 2+ charge - the nitrate ion (NO3 ) has a 1- charge Cu(NO3)2 A word about parentheses … Cu(NO3)2 Number Cu atoms: 1 Number N atoms: 2 Number O atoms: 6 A word about parentheses … Zn(OH)2 Number Zn atoms: 1 Number O atoms: 2 Number H atoms: 2 Ammonium Ion +1 NH4 is the only positive ion we will use in the class. For example: NH4NO3 = ammonium nitrate NH4Cl = ammonium chloride Confusing? Try these … aluminum nitrate Al(NO3)3 sodium sulfate Na2SO4 manganese (II) hydroxide Mn(OH)2 ammonium bromide NH4Br Molecular Compounds nonmetal bonded to nonmetal CO2 H2O N2O5 Molecular Compounds Use prefixes to show number of atoms of each element. CO2 carbon dioxide H2O dihydrogen monoxide N2O5 dinitrogen pentoxide Prefixes mono = 1 di = 2 tri = 3 … Note: CO is carbon monoxide, not monocarbon monooxide Prefixes Practice SF6 - sulfur hexafluoride boron trifluoride - BF3 dinitrogen tetraoxide - N2O4 silicon dioxide - SiO2 Cl2O7 - dichlorine heptaoxide SiS2 - silicon disulfide K3N - potassium nitride Do Now … Date: November 4, 2016 Objective: Name ionic and molecular compounds. Write the name or chemical formula: BaCl2 Fe2O3 CaSO4 PCl3 Calcium fluoride iron(II) chloride dihydrgon monoxide Friday, November 4, 2016 Today: W-Up, Lab: Ionic and Molecular Compounds HW: Name the following compounds… Sodium Nitride Na3N Potassium Bromide KBr Iron (III) Chloride FeCl3 Phosphorous trichloride PCl3 Lab: Properties of Ionic and Molecular Bonds Task: Using your notes and chemistry book design a procedure to determine whether a compound has ionic bonds or covalent (also called molecular) bonds. Purpose: Safety: Procedure: Observations: Data Table (observations): Conclusion: Be sure to include the letter of your unknown substances (A, B, C, …), important observations, problems you needed to overcome, any changes you made to your procedure, and a statement about the nature of you unknown samples supported by evidence from your observations and data. HW Set E Key: Formula to Name 1) aluminum phosphate 2) potassium nitrite 3) sodium hydrogen carbonate 4) calcium carbonate 5) magnesium hydroxide 6) sodium chromate HW Set F Key: Formula to Name 1) Ag2CO3 2) K2HPO4 3) Al(OH)3 4) NaHCO3 5) Ca(CH3COO)2 6) KMnO4 Name the following compounds… SnS tin (II) sulfide PbS2 lead (IV) sulfide calcium chloride CaCl2 NaI sodium iodide ZnF2 zinc fluoride lithium oxide Li2O BeO beryllium oxide Name the following compounds… 1. magnesium sulfide MgS 2. aluminum oxide Al2O3 3.
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