Review:
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compounds
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ionic or molecular compounds
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chemical formulas for of ionic compounds
Nov 3­9:58 AM
Naming Simple Ionic Compounds:
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the International Union of Pure and Applied Chemistry (IUPAC) is a group that is responsible for the rules for naming compounds
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the rules for ionic compounds are as follows:
Step 1: Name the metal ion Ex. MgBr2 : the metal ion is magnesium
Step 2: Name the non­metal by ending it in suffix "ide"
Ex. MgBr2: the non­metal is bromine, changing the ending to ide creates bromide
Step 3: Combine the two to write the name of the compound: Magnesium bromide
Nov 3­9:59 AM
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remember an ionic compound can be identified with its chemical formula or with its name
Example 2: Li3N
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Metal ion is Lithium
Non­metal is Nitrogen
Replace ending with ide, nitride
Ionic compound is called lithium nitride
Nov 3­10:15 AM
Practice
Na2O:
Mg3P2:
AgI:
CaSe:
K2S:
Nov 3­10:18 AM
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Common Ionic Compounds
Name
Formula
sodium chloride (table salt) calcium carbonate
sodium sulfide
sodium hydroxide
NaCl
CaCO3
Na2SO4
NaOH
* you will be expected to know these
Nov 3­10:22 AM
Naming Simple Molecular Compounds
­ the main difference between this and naming ionic compounds is that prefixes are used to indicate the number of each type of atom
Number of Atoms
1
2
3
4
5
6
7
8
9
10
Prefix
mono (only 2nd atom)
di
tri
tetra
penta
hexa
hepta
octa
nona
deca
Nov 3­10:26 AM
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Step 1: Name the first atom
Ex. SiCl4: first atom is silicon
Step 2: Name the second atom by ending the element name with "ide"
­ the second atom is chlorine which becomes chloride
Step 3: Add prefixes to indicate the number of atoms
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no prefix is needed on the first atom
thus no name change
there are 4 of the second atom thus tetra is added: tetrachloride
Step 4: Write the compound name:
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silicon tetrachloride
Nov 3­10:32 AM
Write the names for the following:
SO3
CCl4
N 2O 3
P2O5
Nov 3­10:39 AM
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Common Molecular Compounds:
C3H8:
propone
C4H10:
butane
C6H12O6:
glucose
C12H22O11:
sucrose (sugar)
Nov 3­10:41 AM
Readings:
Pages 80 ­ 85
Questions:
Page 85, #'s 1,2,3,5,7
Matching Game
Nov 3­12:40 PM
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