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5.E: Homework Chapter 5 Answers

  • Page ID
    202147
  • 1.      lose; cations

    3.      H+ for hydrogen ion; H- for hydride ion

    5.       

    a. Nitrogen,1; Hydrogen,4; Chlorine,1.

    b. Sodium,1; Carbon,1; Nitrogen,1.

    c. Barium,1; Hydrogen,2; Carbon,2; Oxygen,6.

    d. Calcium,1; Nitrogen,2; Oxygen,4.

    e. Magnesium,1; Chlorine,2.  

    7.       a. not a molecule   b. a molecule; four atoms total    c. a molecule; four atoms total

    9.       

    Formula

    Number of SO42- Units

    Number of Sulfur Atoms

    Number of Oxygen atoms

    Number of metal atoms

    CaSO4

    1

    1

    4

    1

    Al2(SO4)3

    3

    3

    12

    2

    K2SO4

    1

    1

    4

    2

    11.  MgO, Magnesium Oxide

    13.   a)   covalent b)  ionic    c)    ionic    d)    covalent    e)    covalent

    15.  a. ionic   b. ionic   c. molecular    d. ionic

    17.  a. atomic   b.  atomic      c. molecular   d. molecular

    19.  a. molecular   b. molecular        c. atomic        d. atomic

    21.  a. molecular b. molecular c. atomic d. ionic

    23.  a. covalent b. ionic c. covalent d. covalent

    25.  Name the cation and then the anion but don’t use numerical prefixes.

    27.  Ionic compounds in which the cation can have more than one possible charge have two naming systems. FeCl3 is either iron(III) chloride or ferric chloride (answers will vary).

    29.  

    a.       iron(III) bromide or ferric bromide

    b.      iron(II) bromide or ferrous bromide

    c.       gold(III) sulfide or auric sulfide

    d.      gold(I) sulfide or aurous sulfide

    31.  

    a.        ​NaOCl

    b.      KOH

    c.       NH4NO3

    d.      Al2(SO3)3

    e.        Fe(CN)3

    33.  

    a.        ​ 1 aluminum ion & 3 hydroxide ions                      

    b.       3 lithium ions & 1 phosphate ion

    c.       1 potassium ion & 1 chloride ion

    d.       1 zinc ion & 2 fluoride ions

    e.       2 sodium ions and 1 oxide ions

    35.   

    a.           mercury(I) sulfide

    b.      chromium(III) oxide

    c.        potassium sulfae

    d.       iorn(III) carbonate

    e.       zinc hypochlorite

    37.   

    1.    Ba(C2H3O2)2  barium acetate
    2.   (NH4)2SO4  ammonium sulfate
    3.  Zn(ClO)2  zinc hypochlorite
    4.   Al(OH)3  aluminum hydroxide
    5. Na2CO sodium carbonate

    39.  HgO and Hg2O

    41.  a) K3PO4; (b) CuSO4; (c) CaCl2; (d) TiO2; (e) NH4NO3; (f) NaHSO4

    43.  (a) cesium chloride; (b) barium oxide; (c) potassium sulfide; (d) beryllium chloride; (e) hydrogen bromide; (f) aluminum fluoride

    45.  

    a.         dinitrogen tetroxide

    b.       sulfur hexachloride

    c.       carbon tetrabromide

    d.       Diphosphorus pentoxide

    e.       chlorine heptafluoride

    47.   a. Nitrogen trichloride;  b. Carbon tetraiodide;  c. Carbon monoxide;  d. correct 

    49.   a. Carbon tetrafluoride; b. dichlorine trioxide; c. tetraiodine nonaoxide; d. sulfur hexafluoride

    51.  a. Nitrogen tribromide b. Oxygen gas c. Ammonia (nitrogen trihydride) d. methane (carbon tetrahydride)

    53.  

    a.    295.50 amu   b. 215.60 amu    c. 490.30 amu    d. 426.10 amu

    55.  

    a. 158.04 amu      b. 62.03 amu       c. 304.23 amu      d. 262.87 amu

    57.  

    Ionic compound

    Cation Symbol and name

    Anion symbol and name

    NaC2H3O2

    Na; sodium

    C2H3O2-  ; acetate

    Cr(NO3)3

    Cr3+   ; chromium(III)

    NO3- ; nitrate

    PbCl2

    Pb2+    ; lead(II)

    Cl-  ; chlorine

    Hg3(PO4)2

    Hg2+    ; mercury(II)

    PO43-  ; phosphate

    Ca(HCO3)2

    Ca2+    ; Calcium

    HCO3-  ; bicarbonate

    59.  

    Formula Unit

    Chemical Name

    MgS

    Magnesium sulfide

    Al2O3

    Aluminum Oxide

    Fe(OH)3

    Iron(III)hydroxide

    CuCl2

    Copper(II) chloride

    Pb(CO3)2

    Lead(IV) carbonate

    Zn(HCO3)2

    Zinc bicarbonate

    CaSO4

    Calcium sulfate

    NaC2H3O2

    Sodium acetate

    BaBr2

    Barium bromide

    NH4NO3

    Ammonium nitrate

    61.  

    Ion

    K+

    Fe3+

    NH4+

    Ba2+

    Cl-

    KCl

    FeCl3

    NH4Cl

    BaCl2

    SO42-

    K2SO4

    Fe2(SO4)3

    (NH4)2SO4

    BaSO4

    PO43-

    K3PO4

    FePO4

    (NH4)3PO4

    Ba3(PO4)2

    NO3-

    KNO3

    Fe(NO3)3

    NH4NO3

    Ba(NO3)2

    OH-

    KOH

    Fe(OH)3

    NH4OH

    Ba(OH)2

     

    63.  a. Sulfur tetrafluoride b. Potassium Oxide c. Calcium Iodide   d. Phosphorus pentabromide

    65.   

    1. Sodium Chloride, 58.44 amu
    2. Silver Nitrate, 169.88 amu
    3. Aluminum Fluoride, 83.98 amu
    4. Iodine pentafluoride, 221.90 amu

    67.  A. H2O b. NH3     c. CH4       d. CO2    

    69.   

    Formula

    Type of compound

    Name

    K3N

    ionic

    Potassium nitride

    SiCl4

    Molecular

    Silicon tetrachloride

    CO

    molecular

    Carbon monoxide

    NBr3

    molecular

    Nitrogen tribromide

    71.    

    1. Copper(I) phosphate, 285.62 amu
    2. Tetrasulfur dinitride, 156.26 amu
    3. Lead (II) sulfide, 239.26 amu
    4. Vanadium (IV) oxide, 82.94 amu

    73.    

    1. 639.2 amu
    2. 379.7 amu
    3. 210.4 amu
    4. 188.2 amu
    5. 225.8 amu