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Chapter 9. Do Now #1 Which statement is true? A. Elements in the same group has the same # of val. e- B. Elements in the same period has the same # of.

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Presentation on theme: "Chapter 9. Do Now #1 Which statement is true? A. Elements in the same group has the same # of val. e- B. Elements in the same period has the same # of."— Presentation transcript:

1 Chapter 9

2 Do Now #1 Which statement is true? A. Elements in the same group has the same # of val. e- B. Elements in the same period has the same # of val. e-

3 Write the formula for each of the following compounds. 1. Ammonium sulfate 2. Vanadium (V) fluoride 3. Copper (III) nitrate 4. Aluminum oxide Answers: 1. (NH 4 ) 2 SO 4 2. VF 5 3. Cu(NO 3 ) 3 4. Al 2 O 3 Do Now #2

4 Do Now #3 What is the difference between CuSO 4 and CuNO 3 ? Answer: Contain different polyatomic anion CuSO 4 : copper 2+ CuNO 3 : copper 1+

5 Name the following compounds: 1. CO 2. SiO 2 3. P 4 O 6 Write the formula for the below compounds: 1. Arsenic tribromide Answer: 1. Carbon monoxide 2. Silicon dioxide 3. Tetraphosphorus hexoxide Answer: AsBr 3 Do Now #4

6 Types of Chemical Bonds Ionic Compounds: Formed by the opposite attraction between cations & anions. (btwn metals & non-metals) Salt - scientific name given to many different ionic compounds Transfer of electrons creates ions

7 Formation of Sodium Chloride

8 / Hydrogen can be 1+ or 1-, most common is 1+

9 CATIONS (alkalai = +1, alkaline earth = +2, aluminum = +3, zinc = +2, silver = +1) sodium ion_______ beryllium ion _______ aluminum ion _____ strontium ion ______ cesium ion _________ silver ion _____ Na 1+ Be 2+ Al 3+ Sr 2+ Cs + Ag +

10 TRANSITION/POST TRANSITION METALS (variable) copper (I) ion _____ copper (II) ion _____ cobalt (II) ion ______ manganese (VII) ion ______ iron (II) ion ______ iron (III) ion _____ Cu + Cu 2+ Co 2+ Mn 7+ Fe 3+ Fe 2+

11 ANIONS (monoatomic anions all end in –ide) nitride ______ fluoride _______ oxide ______ chloride _____ iodide _______ phosphide ______ N 3- F 1- O 2- Cl 1- I 1- P 3-

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13 BINARY IONIC COMPOUNDS (Salts) Naming rule: Metal name______________ ide (root of non-metal) Ex: AlCl 3 = Aluminum Chloride a. Li 2 O b. MgF 2 c. Ca 3 P 2 d. SrI 2 Lithium Oxide Magnesium Fluoride Calcium Phosphide Strontium Iodide

14 Formula writing Al +3 Cl -1 Al 1 Cl 3 = AlCl 3 Sodium chloride Calcium chloride Ionic Compound subscripts must be reduced Ti +4 O -2 Sn +2 O -2 Ti 2 O 4 reduces to TiO 2 Sn 2 O 2 reduces to SnO NaCl CaCl 2

15 Write the FORMULA for: a. lithium fluorideb. calcium bromide LiFCaBr 2 c. magnesium phosphide d. barium oxide Mg 3 P 2 BaO e. iron(III) chloridef. lead (II) nitride FeCl 3 Pb 3 N 2 g. potassium nitrideh. tin(IV) oxide K 3 N SnO 2

16  Ions made up of 2 or more atoms  Charge is spread across the group of bonded atoms Polyatomic ion You do not need to memorize them. They will be given to you during the test

17 Write the FORMULA for: a. lithium sulfateb. calcium hydroxide Li 2 SO 4 Ca(OH) 2 c. copper(II) cyanided. strontium nitrate Cu(CN) 2 Sr(NO 3 ) 2 e. chromium(III) phosphatef. manganese (IV) carbonate CrPO 4 Mn(CO 3 ) 2 g. barium chlorateh. aluminum permanganate Ba(ClO 3 ) 2 Al(MnO 4 ) 3

18 NAME the following compounds: a. NH 4 Clb. Ca(CN) 2 Ammonium Chloride Calcium Cyanide c. Na 3 PO 4 d. Al(OH) 3 Sodium Phosphate Aluminum Hydroxide e. ZnSO 4 f. Cs 2 CO 3 Zinc Sulfate Cesium Carbonate g. KClO 3 h. Mg 3 (PO 4 ) 2 Potassium Chlorate Magnesium Phosphate

19 TRANSITION/POST TRANSITION METALS (charge varies) WHAT ABOUT THE METALS THAT HAVE MORE THAN ONE OXIDATION # (CHARGE)? a. Write in the charges for the ions you are sure of (anion) b. Work backwards to find the charge of the metal ion (cation) Which metals DO NOT need Roman Numerals? Column I (alkali) Column II (alkaline earth) Silver (always +1): Ag + Zinc (always +2): Zn 2+ Aluminum (always +3): Al 3+

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21 NAME the following compounds (Roman numerals shows the charge of the metal) a. CuSb. FeP copper (II) sulfide iron (III) phosphide c. FeSO 4 d. CuNO 3 iron (II) sulfate copper (I) nitrate e. NiI 3 f. Cr(MnO 4 ) 4 nickel (III) iodide chromium (IV) permanganate g. Pb(NO 3 ) 2 h. Pb(SO 4 ) 2 lead (II) nitrate lead (IV) sulfate i. Sn(CO 3 ) 2 j Sn(NO 3 ) 2 tin (IV) carbonatetin (II) nitrate k. Cu 3 (PO 4 ) 2 l. Cu 3 PO 4 copper (II) phosphate copper (I) phosphate

22 Covalent Compounds  Formed when atoms share one or more pairs of electrons  Bonds between nonmetals

23 Prefix# of AtomsPrefix# of Atoms mono-1hexa-6 di-2hepta-7 tri-3octa-8 tetra-4nona-9 penta-5deca-10 Examples: SO 2 → Sulfur dioxide SO 3 → Sulfur trioxide NO → Nitrogen monoxide NOT Mononitrogen monooxide N 2 O 5 → Dinitrogen pentoxide NOT dinitrogen pentaoxide Some compounds are always referred to by their common names H 2 O Water NH 3 Ammonia CH 4 Methane

24 C 3 Cl 6 Si 2 O 7 C 5 F 10 PCl 5 Prefix# of AtomsPrefix# of Atoms mono-1hexa-6 di-2hepta-7 tri-3octa-8 tetra-4nona-9 penta-5deca-10 tricarbon hexachloride Disilicon heptoxide pentacarbon decafluoride phosphorous pentachloride

25 Writing the formula of molecular/covalent compounds: a) dinitrogen pentaoxide b) Boron triflouride c) Carbon monoxide d) Carbon tetrachloride e) dinitrogen monoxide f) nitrogen dioxide g) dichlorine monoxide h) carbon tetrafluoride i) tetracarbon octabromide N2O5N2O5 BF 3 CO CCl 4 N2ON2O NO 2 Cl 2 O CF 4 C 4 Br 8

26 BINARY: Contains exactly two elements. (without oxygen) 1. prefix hydro- to name the hydrogen part of the acid 2. add the suffix –ic EXAMPLES: HClHBr hydrochloric acid hydrobromic acid Naming Acids (hint: acids start with “H”)

27 Naming Acids CONT… Oxyacids: (contain oxygen) (H & polyatomic ion with O) 1. use the root of the anion 2. if it is an –ate anion, use the –ic ending 3. if it is an –ite anion, use the –ous ending H 2 SO 4 HNO 3 sulfuric acid nitric acid H 2 SO 3 HNO 2 sulfurous acid nitrous acid

28 FORMULAANIONNAME H 2 CO 3 HC 2 H 3 O 2 H 2 SO 3 H3PH3P H2SH2S Carbonate Carbonic acid AcetateAcetic acid SulfiteSulfurous acid Phosphide Hydrophosphoric acid SulfideHydrosulfuric acid

29 FORMULAANIONNAME hydronitric acid nitrous acid permanganic acid sulfuric acid hydrofluoric acid phosphoric acid hydrophosphoric acid H3NH3NN 3- HNO 2 NO 2 -1 HMnO 4 MnO 4 -1 SO 4 -2 H 2 SO 4 HF F 1- PO 4 -3 P 3- H 3 PO 4 H3PH3P


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