1. Naming Ionic Compounds
Metals react with non-metals to form ionic compounds, result in net charge of zero
Ionic compounds = “Salt”; Cation(s) attract Anion(s) by ionic bonding, results in high m.p.
Memorize the fixed charge of each simple ion, Table 5.1, p.125 (no exceptions for Group 1,2,7)
Rules for naming Binary type I, p.125
Examples p self check 5.1
Write chemical formulas from names
Q: what is the overall net charge of each compound?
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Chem 2 Chapter 5 Jean Lee Lin

2. Binary Type II Compounds
Most transition metals and tin, lead carry more than one type of charge
Table 5.2, see also –ic, -ous endings
Exceptions: Ag+, Zn+2 (both fixed charge)
Rules p.128, must determine the charge number of cations and assign Roman Numeral! Remember to keep each compound net charge of zero
Examples p
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Chem 2 Chapter 5 Jean Lee Lin

3. Non-metal compounds (Type III)
Provide headcount of each element Table 5.3 p.132
Rules p.132
Name the first element without change, and the second element with –ide ending
Do Not use mono for the first element
Examples p Review, self check 5.5 in classroom
Write chemical formulas from names
7/15/2019
Chem 2 Chapter 5 Jean Lee Lin

4. Chem 2 Chapter 5 Jean Lee Lin
Polyatomic Ions
Oxyanions, -ate and -ite ending
SO4-2 vs. SO3-2
NO3- vs. NO2-
Must learn the composition and charge of the group, Table 5.4 p.137
Recognize the parts when a formula is given
Examples p.138 Self check 5.6, keep net charge ZERO for each compound
Review Self check 5.7 p.140
Replace Cl with Br, I in chlorate, chlorite
Q: No headcounts is necessary in this category, why?
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Chem 2 Chapter 5 Jean Lee Lin

5. Chem 2 Chapter 5 Jean Lee Lin
Naming Acids
The formation of acids in water, assign (aq)
Add H+ to oxyanions in Table 5.4 to form acids
Must recognize H+ in the formula as an acidic proton in water, sour taste, corrosive!
Oxygen-containing acid,
-ic acid (for oxyanion with –ate ending)
-ous…acid (for –ite ending)
Table 5.6 p.141
7/15/2019
Chem 2 Chapter 5 Jean Lee Lin

6. Chem 2 Chapter 5 Jean Lee Lin
Naming Acids
If oxygen-free, “Hydro-…..ic acid”
Compare HCl (aq) hydrochloric acid
HCl (g) hydrogen chloride
Table 5.5 p.141(short formula but long name!)
Write chemical formulas from names HW#50 p.146
Q: Replace Cl in HClO3 (chloric acid) with Br and I and name the resultant acids.
Q: Write the names for H2S(g) and H2S(aq)
7/15/2019
Chem 2 Chapter 5 Jean Lee Lin