Quiz: Feb 4, 2005
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Transcript of Quiz: Feb 4, 2005
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Quiz: Feb 4, 2005Write the names and
formulas for the ionic compounds formed by these ions:
1. Cu1+ and S2-
2. Cu2+ and S2-
3. Al3+ and P3-
4. Al3+ and NO31-
5. Co(OH)2 = cobalt (__) hydroxide
1. copper (I) sulfide = Cu2S
2. copper (II) sulfide = CuS
3. aluminum phosphide = AlP
4. aluminum nitrate = Al(NO3)3
5. cobalt (II) hydroxide
phosphide = P3-
sulfide = S2-
http://www.cnn.com/2003/US/02/10/sprj.bhm.innovators/George Washington Carver 10 zillion things to do with peanuts
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Use roman numerals in the name whenthe transition metal has more than one possible charge:Fe2+, Fe3+, Mn2+, Mn3+, Mn4+, Mn7+, Cu1+,…
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Name the following: CuCl, CuCl2;MnO2, Hg2I2, Fe2 (CrO4)3, PbSO4,FeO, Fe2O3, SnBr2, SnBr4, HgO, NiBr3
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Naming ionic compounds containing polyvalent cations.• CuCl• CuCl2
• MnO2
• Hg2I2
• Fe2 (CrO4)3
• PbSO4
• FeO• Fe2O3
• SnBr2
• SnBr4
• HgO• NiBr3
• copper (I) chloride• copper (II) chloride• manganese (IV)
oxide• mercury (I) iodide• iron (III) chromate• lead (II) sulfate• iron (II) oxide• iron (III) oxide• tin (II) bromide• tin (IV) bromide• mercury (II) oxide• nickel (III) bromide
Cu? Cl1-
Mn?O2-
O2-
Cl1-
Hg?
I1-
I1-
Hg?
Fe?
CrO42-
CrO42-
Fe?
CrO42-
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Naming ionic compounds containing polyvalent cations.• NiCl• NiCl2
• CrS2
• Hg2F2
• Mn2 (CrO4)3
• MnSO4
• PbO• PbO2
• SnF2
• SnS2
• Hg3(PO4)2
• NiBr2
• nickel (I) chloride• nickel (II) chloride• chromium (IV)
sulfide• mercury (I) fluoride• manganese (III)
chromate• manganese (II)
sulfate• lead (II) oxide• lead (IV) oxide• tin (II) fluoride• tin (IV) sulfide• mercury (II)
phosphate• nickel (II) bromide
Ni? Cl1-
Cr?S2-
S2-
Cl1-
Hg?
F1-
F1-
Hg?
Mn?
CrO42-
CrO42-
Mn?
CrO42-
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Writing Formulas
potassium fluoride
ammonium sulfate
magnesium iodide
copper (II) sulfite….
K F
(NH4)2SO4
Mg I2
CuSO3
K+ and F-
NH4+ and
SO42-
Mg2+ and
I 1-
Cu2+ and SO3
2-
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ON
O 1-
• Aluminum phosphate
• lead (II) nitrite
• cobalt (II) selenide
• silver cyanide
• copper II bicarbonate
Al3+
OP
O
O
O
3-
AlPO4
Pb2+
ON
O 1-
Pb(NO2)2
CoSe
Ag1+
C N
1-
AgCNCu2+
O
H
CO
O1-
O
H
CO
O1-
Cu(HCO3)2
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Covalent Compounds form when two nonmetals and/or a metalloid and a nonmetal bond
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To name covalent compounds
• Covalent compounds are composed of two or more nonmetals which share electrons. (Some metalloids are covalently bonded as well).
• USE PREFIXES mono = 1 penta = 5di = 2 hexa = 6tri = 3 hepta = 7tetra = 4 octa = 8
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prefix of less electronegative atom (n ≠ 1), prefix of second atom– ending ide
Naming covalent compounds
• CO2
• CO
• P2O5
mono = 1 penta = 5di = 2 hexa = 6tri = 3 hepta = 7tetra = 4 octa = 8
• carbon dioxide• carbon monoxide• diphosphorous
pentoxideTry SF6
http://misterguch.brinkster.net/covalentcom
pounds.html
click above for more inform
ation about covalent compounds
sulfur hexafluoride
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Naming covalent compounds
• antimony tribromide• hexaboron (mono)silicide• chlorine dioxide
• iodine pentafluoride
• ….
SbBr3
B6Si
ClO2
I F5
more examples
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Writing Formulas for covalent compounds
• P4S5
• O2
• SeF6
• Si2Br6
• SCl4
• …
• tetraphosphorous pentasulfide
• oxygen
• selenium hexafluoride
• disilicon hexabromide
• sulfur tetra chloride
CH4 methane, is an exception because it is an ORGANICcompound.
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Naming Organic Compounds
• Organic compounds have one or more carbons, surrounded with hydrogens.
• They may have double or triple bonds, and may include oxygen, or other atoms.
• They are named by counting the “carbon backbone” and applying a prefix
• “Functional Groups” provide the rest of the name.
meth = 1eth = 2prop = 3but = 4pent = 5hex = 6hept = 7oct = 8non = 9…
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Naming Organic Compounds
• Butane = 4 carbons
• CH3CH2CH2CH3
• Heptane = 7 carbons
• CH3CH2CH2CH2CH2CH2CH3
• Octane = 8 carbons
• CH3CH2CH2CH2CH2CH2CH2CH3
meth = 1eth = 2prop = 3but = 4pent = 5hex = 6hept = 7oct = 8non = 9…
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13 c page 178
3 carbon atoms
6 hydrogen atoms
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13 f page 178
6 carbon atoms
12 hydrogen atoms
http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA5/MAIN/1ORGANIC/ORG02/TRAM02/E/NOMOVIE/MISC.HTM
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Molecular and Empirical Formulas.• Molecular: adj. Pertaining to, consisting of,
caused by, or existing between molecules.
• Empirical: adj. 1. Relying upon or derived from observation or experiment. 2. Guided by practical experience and not theory, especially in medicine.
• Formula: n 1. an established form of words for use in a ceremony or procedure. 3. Chemistry: a. a symbolic representation of the composition or of the composition and structure of a chemical compound. b. The chemical compound so represented. c. A prescription in exact proportion: recipe.
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Molecular and Empirical Formulas
• C6H12O6
• H2O2
CH2O
HO
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Coefficients: How many sets of a particular compound/element• 2 C6H12
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Coefficients: How many sets of a particular compound/element• 5 C6H12