Rules For Naming Compounds

Question 1

Monatomic Metal Cations

Answer 1

keep the same name as the element

Question 2

K(+)

Answer 2

Potassium Ion

Question 3

Na(+)

Answer 3

Sodium Ion

Question 4

Al(3+)

Answer 4

Aluminum Ion

Question 5

Fe(2+)

Answer 5

Iron (II) Ion

Question 6

Fe(3+)

Answer 6

Iron (III) Ion

Question 7

Monatomic Anions

Answer 7

replace the ending of the element name with “-ide”

Question 8

H(-)

Answer 8

Hydride Ion

Question 9

Cl(-)

Answer 9

Chloride Ion

Question 10

N(3-)

Answer 10

Nitride Ion

Question 11

Polyatomic Nonmetal Cations

Answer 11

names that end in “-ium”

Question 12

NH(4+)

Answer 12

Ammonium Ion

Question 13

H3O(+)

Answer 13

Hydronium Ion

Question 14

Polyatomic Anions

Answer 14

end with “-ide”

Question 15

OH(-)

Answer 15

Hydroxide Ion

Question 16

CN(-)

Answer 16

Cyanide Ion

Question 17

Oxyanions (anions that contain oxygen)

Answer 17

mostly end in “-ate”, “-ite” if there is one less oxygen atom

Question 18

SO4(2-)

Answer 18

Sulfate Ion

Question 19

SO3(2-)

Answer 19

Sulfite Ion

Question 20

Cations Containing Oxygen and Hydrogen

Answer 20

add the word “hydrogen” or “dihydrogen” at the beginning

Question 21

HCO3(-)

Answer 21

Hydrogen Carbonate Ion

Question 22

H2PO4(-)

Answer 22

Dihydrogen Phosphate Ion

Question 23

Binary Acids

Answer 23

a) start with the prefix “hydro-“
b) add the name of the monatomic ion
c) change the end to “-ic”
d) add the word “acid”