Unit 1, Nomenclature

Question 1

IUPAC

Answer 1

international union of pure and applied chemistry

Question 2

Naming ionic compounds (main group metals)

Answer 2

1. full name of metal
2. change ending of non-metal to -ide
   ex. Sodium Chloride

Question 3

Naming ionic compounds (transition metals)

Answer 3

1. full name of metal + roman numeral of charge of metal
2. change ending of non-metal to -ide
   ex. Copper (1) sulfide

Question 4

Classical naming system

Answer 4

-old way
-ic = large
-ous = small
ex. plumbous, Pb2+

Question 5

Stock naming system

Answer 5

-new, current
-name of metal + roman numeral number of the charge
-ex. lead (II)

Question 6

Polyatomic compounds

Answer 6

a group of atoms joined together by covalent bonds that possesses a charge

Question 7

Prefixes of naming covalent compounds

Answer 7

1. mono
2. di
3. tri
4. tetra
5. penta
6. hexa
7. hepta
8. octa
9. nona
10. deca

Question 8

Naming covalent compounds

Answer 8

*never reduce subscripts
-omit mono from first atom ex. carbon tetrachloride - CCl4
-don’t specify the number of each atom for hydrogen when written 1st ex. hydrogen sulfide- H2S
ex. N2O5- dinitrogen pentoxide

Question 9

binary hydrides

Answer 9

name the metal and then add the word hydride
ex. LiH lithium hydride
NaH sodium hydride

Question 10

Binary acids

Answer 10

-hydrogen + nonmetal/single anion
-aqueous state
-to name, add “hydro-“ in front (means lack of oxygen), ending changes to “-ic acid”
ex. HCl(aq) hydrochloric acid or aqueous hydrogen chloride

Question 11

Hydrates

Answer 11

-compounds with associated water molecules
-anhydrous- no associated water molecules just the basic formula (or say anhydrous in front)
-hydrated- water associated with the basic formula
ex. hydrated copper (II) sulfate = CuSO4*5H2O = copper (II) sulfate pentahydrate