1.ionic - iron (II) chloride 2.ionic -lead (II) oxide 3.ionic - copper (I) chromate 4.covalent-...
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Transcript of 1.ionic - iron (II) chloride 2.ionic -lead (II) oxide 3.ionic - copper (I) chromate 4.covalent-...
1. ionic - iron (II) chloride2. ionic -lead (II) oxide3. ionic - copper (I)
chromate4. covalent- carbon dioxide5. covalent- diphosphorous
pentoxide6. covalent- silicon dioxide7. ionic – iron (II) oxide8. ionic – sodium chloride9. covalent – carbon
tetrachloride10.ionic – sodium
hydroxide
Quiz 2/9/05
1. FeCl2
2. PbO
3. Cu2CrO4
4. CO2
5. P2O5
6. SiO2
7. FeO8. NaCl
9. CCl4
10. NaOH
Fe? Cl1-
Pb?O2-
O2-
Cl1-
Co?
CrO42-
CrO42-
Co?
CrO42-
Name all of the following
CO2
covalent
carbon dioxide
FeCl2
ionic
iron (II) chloride
Electronegativity: the relative tendency of an atom to attract electrons to itself when participating in a chemical bond.
• Most bonds have some ionic character.• If more than 50% of the time one ion has
possession of the electron, the compound is considered ionic.
• This means that if the difference in electronegativity is greater than 1.67, the compound is considered ionic.
• The more ionic a bond, the more easily a solution of the compound will conduct electricity.
• Electricity is defined as the flow of electrons.• Do pre-lab for lab 21 We will do the lab on
Thursday.
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…
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…
13 c page 178
3 carbon atoms
6 hydrogen atoms
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
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.
Molecular and Empirical Formulas
• C6H12O6
• H2O2
• Hg2I2
• C6H14
CH2O
HOHgIC2H7
Coefficients: How many sets of a particular compound/element• 2 C6H12
Coefficients: How many sets of a particular compound/element• 5 C6H12