NH4NO3 Co2(CO3)3 - calcium hydroxide - copper(II) sulfate - ammonium nitrate - cobalt(III) carbonate . 02/26/20 Is it possible for a compound to have both ionic and covalent bonds? 5 covalent
Mg(NO3)2 ionic . 02/26/20 6 Names vs. Formulas Chemical Name - indicates what atoms are present in the compound Chemical Formula - short hand way of writing the name of the compound that indicates how many atoms of each element are present in the compound. MgCl2
1 Magnesium atom 2 Chlorine atoms . 02/26/20 Ionic Compounds 7 Binary Ionic Compounds Metal + nonmetal Ternary Ionic Compounds
Metal + polyatomic ion Binary Ionic Compounds with Transition Metals Transition metal + nonmetal Ternary Ionic Compounds with Transition Metals Transition Metal + polyatomic ion Ternary Ionic Compounds with 2 Polyatomic Ions . 02/26/20 Naming Binary Ionic Compounds 8
Name the metal ion. Name the nonmetal ion. Ex: NaCl Metal ion = sodium Nonmetal ion = chloride You try: LiCl MgO . 02/26/20 Writing formulas for Binary Ionic Compounds 9 Determine the oxidation number (charge) for each
ion . 02/26/20 +1 +2 02/26/20 -3 -2
-1 10 0 Determining Oxidation Numbers 11 Alkali Metals (group IA) --> +1 Alkaline Earth Metals (group IIA) --> +2 Transition Metals --> B group - exceptions C group - exceptions N group --> -3 O group --> -2 Halogens --> -1
16 Name the metal Name the polyatomic ion Ex: Na2SO4 Metal --> sodium Polyatomic ion --> sulfate Name --> sodium sulfate Ex : LiNO3 Mg3(PO4)2 . 02/26/20
Writing formulas for Ternary Ionic Compounds17 Determine the oxidation number of the metal. Write the formula for the polyatomic ion. Cross over. Ex: lithium phosphite Li+1 (PO3)-3 Li3PO3 . 02/26/20 Practice! 18
Write the formula for the following: 1. Sodium nitrate 2. Magnesium sulfate 3. Potassium perchlorate Name the following: 1. KNO2 2. CaSO4 3. LiNO3 . 02/26/20 Answers
19 NaNO3 MgSO4 KClO4 Potassium nitrite Calcium sulfate Lithium nitrate . 02/26/20 Determining Oxidation States from Compounds 20
Oxidation state = charge Compounds are neutral, so the + charges have to equal the charges Ex: CuS S (group 16) -2 No subscripts, so we know the charges cancelled each other out So, Cu +2 . 02/26/20 Naming Binary Ionic Compounds with Transition Metals 21
Identify the transition metal in the formula. Determine the oxidation number of the transition metal. Name the transition metal. Use a roman numeral to note the oxidation number of the transition metal. Name the nonmetal ion. . 02/26/20 Naming Binary Ionic Compounds with Transition Metals
22 Ex: FeCl2 What is the transition metal? Fe What is the ox. Number of the t.metal? +2 What is the nonmetal ion? Cl Name: Iron (II) chloride You try: CuCl Cr2O3 . 02/26/20 Writing formulas for Binary Ionic Compounds
with Transition Metals 23 The roman numeral in the compound name gives the oxidation number of the metal ion. Ex: Iron (III) fluoride Metal --> Fe Metal ox. Number --> +3 Nonmetal --> F-1 Formula --> FeF3 . 02/26/20 Practice!
24 Name the following: 1. CrCl3 2. CuF2 3. CuF Write the formula for the following: 1. Iron (II) sulfide 2. Iron (III) sulfide 3. Copper (II) oxide . 02/26/20 Answers
Determine oxidation number of transition metal. Determine name of polyatomic ion. Name transition metal ion. Roman Numeral indicates the charge on the transition metal Name the polyatomic ion. Ex: Cu(NO3)2 is named Copper (II) nitrate . 02/26/20 Writing formulas for Ternary Ionic Compounds27 with Transition Metals Determine oxidation number of transition metal.
Write formula for polyatomic ion. Cross over. Ex: chromium (II) phosphate Cr+2 (PO4)-3 Cr3(PO4)2 . 02/26/20 Practice! 28 Name the following:
1. CuSO4 2. FePO4 3. Cr(NO3)3 Write the formula for the following: 1. Iron (II) nitrate 2. Copper (I) nitrate 3. Copper (II) perchlorate . 02/26/20 Answers 29
Copper (II) sulfate Iron (III) phosphate Chromium (III) nitrate Fe(NO3)2 CuNO3 Cu(ClO4)2 . 02/26/20 30 Another way Memorize the Latin names for the transition metal ions. Ex: Fe+3 = Ferric Ex: Fe+2 = Ferrous
Ex: FeCl3 is named 2 ways: Iron (III) chloride Ferric chloride . 02/26/20 Ternary Ionic Compounds with 2 Polyatomic Ions 31 The polyatomic cation has to be NH4+1! Name ammonium. Name polyatomic anion.
. 02/26/20 32 Naming Acids Acids always have hydrogen at the front of the formula Ex: HCl, HBr, HClO4, H2SO4 To Name Binary Acids (H + element) Hydro _____ ic Acid To Name Ternary Acids (H + polyatomic ion) Name the polyatomic ion If the polyatomic ion ends in -ate, the acid will end in -ic acid
If the polyatomic ion ends in -ite, the acid will end in -ous acid If the polyatomic ion ends in -ide, the acid will be named hydro _____ ic acid . 02/26/20 Examples 33 HCl - hydrochloric acid HBr - hydrobromic acid HF - hydrofluoric acid HNO3 - nitric acid (nitrate --> nitric) HNO2 - nitrous acid (nitrite -->nitrous)
HCN hydrocyanic acid . 02/26/20 Writing Formulas for Acids 34 Hydrogen always has +1 ox. Number Cross over charge of polyatomic ion. Ex: H+1 (SO4)-2 H2SO4
. 02/26/20 Naming Bases 35 Bases always have hydroxide (OH-1) as the anion KOH - potassium hydroxide Ca(OH)2 - calcium hydroxide Fe(OH)2 - iron (II) hydroxide . 02/26/20
Writing formulas for Bases 36 Determine the oxidation number for the cation. Cross over the oxidation number of the cation to the hydroxide. Mg+2 (OH)-1 Mg(OH)2 . 02/26/20
Martin S. Silberberg, Chemistry: The Molecular Nature of Matter and Change, McGraw-Hill Higher Education, 2004 Raymond Chang, Chemistry, Williams College, McGraw-Hill Higher Education, 2002
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