Naming Compounds

1
Naming Compounds
TLS
2
Is compound binary?
YES
NO
3
Is the 1st element a METAL ?
YES
NO
4
Is Hydrogen first ?
YES
NO
5
Is it a group A representative METAL ?
YES
NO
6

• Name both ions
• Change the ending of the
• anion to ide

EX NaCl Sodium Chloride
RETURN TO BEGINNING
7

• Name both ions
• Use correct roman numeral
• in ( )with the cation
• Change the ending of the
• anion to ide

How do I figure out the roman numeral?
EX FeCl2 Iron (II) Chloride
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8
Is Hydrogen first ?
YES
NO
9
Is the cation Polyatomic?
YES
NO
10

• You have a binary acid
• Add hydro to beginning
• Change ide on anion to ic
• Add acid to ending

EX HCl Hydrochloric Acid
RETURN TO BEGINNING
11

• You have a molecular
• compound
• Use Greek prefixes to
• indicate number of atoms
• Change ending to ide

1mono 2di 3tri 4tetra 5penta 6hexa 7hepta 8
octa 9nano 10deca
EX CCl4 Carbon Tetrachloride
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12
ROMAN NUMERALS???
Transition metals can exist in
more than one oxidation state (have more
than 1 charge)
To determine the charge on the ion in
question 1. Determine the charge of the ANION
(look on periodic table) 2. Look at the number
of anions present (written down below) 3.
Determine the TOTAL negative charge 4. Look at
the number of cations present 5. Divide TOTAL
negative charge by number of cations present 6.
This is the Roman numeral you place in ( ) after
the cation name
Show me an example
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13
To determine the charge on the ion in
question 1. Determine the charge of the ANION
(look on periodic table) 2. Look at the number
of anions present (written down below) 3.
Determine the TOTAL negative charge 4. Look at
the number of cations present 5. Divide TOTAL
negative charge by number of cations present 6.
This is the Roman numeral you place in ( ) after
the cation name
1. Oxygens charge is 2 2. There are 3 anions
present 3. Total charge is -6 4. There are 2
cations present 5. 6/2 3 6. Therefore each Fe
caion must have a 3 charge Iron (III)
Fe2O3
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14

• Compound is an oxyacid
• Change ate to ic
• OR
• Change ite to ous
• Add Acid

EX H2SO4 Sulfuric Acid
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15

• Name cation
• If anion is
• single element change the ending of
• the anion to ide
• also polyatomic write name of anion

EX NH4Cl Ammonium Chloride EX
NH4NO3Ammonium Nitrate
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16
Is it a group A representative METAL ?
YES
NO
17

• Name the cation
• Name the anion
• will end with ate or ite
• (hydroxide and cyanide are exceptions)

EX LiCO3 Lithium Carbonate
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18

• Name both ions
• Use proper roman numeral
• in ( )with the cation
• name the anion

How do I figure out the roman numeral?
EX Fe2(CO3)3 Iron (III) Carbonate
RETURN TO BEGINNING
19
ROMAN NUMERALS???
Transition metals can exist in
more than one oxidation state (have more
than 1 charge)
To determine the charge on the ion in
question 1. Determine the charge of the ANION
(look on periodic table) 2. Look at the number
of anions present (written down below) 3.
Determine the TOTAL negative charge 4. Look at
the number of cations present 5. Divide TOTAL
negative charge by number of cations present 6.
This is the Roman numeral you place in ( ) after
the cation name
Show me an example
BACK TO NAME
20
To determine the charge on the ion in
question 1. Determine the charge of the ANION
(look on periodic table) 2. Look at the number
of anions present (written down below) 3.
Determine the TOTAL negative charge 4. Look at
the number of cations present 5. Divide TOTAL
negative charge by number of cations present 6.
This is the Roman numeral you place in ( ) after
the cation name
1. Oxygens charge is 2 2. There are 3 anions
present 3. Total charge is -6 4. There are 2
cations present 5. 6/2 3 6. Therefore each Fe
cation must have a 3 charge Iron (III)
Fe2O3
BACK TO NAME