section 2.8 naming simple compounds return to toc 1 formed between two nonmetals. 1.the first...
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Section 2.8
Naming Simple Compounds
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• Formed between two nonmetals.
1. The first element in the formula is named first, using the full element name.
2. The second element is named as if it were an anion.
3. Prefixes are used to denote the numbers of atoms present.
4. The prefix mono- is never used for naming the first element.
Binary Covalent Compounds (Type III)
Section 2.8
Naming Simple Compounds
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2
Prefixes Used to Indicate Number in Chemical Names
Section 2.8
Naming Simple Compounds
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• Examples:
CO2 Carbon dioxide
SF6 Sulfur hexafluoride
N2O4 Dinitrogen tetroxide
Binary Covalent Compounds (Type III)
Section 2.8
Naming Simple Compounds
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Examples
N2
O
dinitrogen monoxide
NO
nitrogen monoxide
NO2
nitrogen dioxide
N2
O4
dinitrogen tetroxide
PCl5
Phosphorous pentachloride
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Section 2.8
Naming Simple Compounds
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Exercise
What is the name of the compound SeO2?
a) selenium oxide
b) selenium dioxide
c) selenium(II) oxide
d) selenium(IV) dioxide
Section 2.8
Naming Simple Compounds
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Exercise
A compound has the formula XCl3 where X could represent a metal or nonmetal. What could the name of this compound be?
a) phosphorus trichloride
b) carbon monochloride
c) tin(IV) chloride
d) magnesium chloride
Section 2.8
Naming Simple Compounds
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Concept Check
Name the following Covalent Compounds
CO2
SF6
N2
O4
Carbon dioxide
Sulfur hexafluoride
Dinitrogen tetroxide
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Section 2.8
Naming Simple Compounds
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8
Exercise
Which of the following compounds is named incorrectly?
a) KNO3 potassium nitrate
b) TiO2 titanium(II) oxide
c) Sn(OH)4 tin(IV) hydroxide
d) PBr5 phosphorus pentabromide
e) CaCrO4 calcium chromate
Section 2.8
Naming Simple Compounds
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Exercise – mixed review
Examine the following table of formulas and names. Which of the compounds are named correctly?
a) I, II
b) I, III, IV
c) I, IV
d) I only
Formula Name
I P2O5 Diphosphorus pentoxide
II ClO2 Chlorine oxide
III PbI4 Lead iodide
IV CuSO4 Copper(I) sulfate
Section 2.8
Naming Simple Compounds
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10
Flowchart for Naming Binary Compounds