Polyatomic ions

Question 1

Formate

Answer 1

HCOO^-

Question 2

Hydronium

Answer 2

H3O^+

Question 3

What are monotomic anions and what do their groups include

Answer 3

They are main group elements whose ion charges are predictable

They include main groups 5A, 6A, and 7A

Question 4

What is the formation of naming monatomic anions

Answer 4

Name of the parent atom base + ide + ion

ex. F^- is Fluoride, N^3- is nitride

Question 5

What type of bonding occurs within anions

Answer 5

Covalent bonding

Question 6

What are oxyanions

Answer 6

Polyatomic ions with oxygens bound to other elements

Question 7

What are patterns in naming polyatomic ions

Answer 7

-ite” form always has 1 less
oxygen than “-ate” form, but
same charge
* oxyanions with more than 2
forms use prefixes “per-” and
“hypo-”
* adding H+ changes the name
and the charge of the oxyanion

Question 8

Acetate

Answer 8

C2H3O2^-

Question 9

Carbonate

Answer 9

CO3^2-

Question 10

Hydrogen carbonate (or bicarbonate)

Answer 10

OH^-

Question 11

Nitrite

Answer 11

NO2^-

Question 12

Nitrate

Answer 12

NO3^-

Question 13

Chromate

Answer 13

CrO4^2-

Question 14

Phosphate

Answer 14

PO4^3-

Question 15

Hydrogen Phosphate

Answer 15

HPO4^2-

Question 16

Ammonium

Answer 16

NH4^+

Question 17

Chlorite

Answer 17

ClO2^-

Question 18

Chlorate

Answer 18

ClO3^-

Question 19

Perchlorate

Answer 19

ClO4^-

Question 20

Hypochlorite

Answer 20

ClO^-

Question 20

Permanganate

Answer 20

MnO4^-

Question 21

Sulfite

Answer 21

SO3^2-

Question 22

Hydrogen sulfite (or bisulfite)

Answer 22

HSO3^-

Question 23

Sulfate

Answer 23

SO4^2-

Question 24

Hydrogen sulfate

Answer 24

HSO4^-

Question 25

Cyanide

Answer 25

CN^-

Question 26

Lead (IV) meaning

Answer 26

Pb^4+

Question 27

Hydrates

Answer 27

Ionic compounds in which formula unit has a certain amount of water molecules associated with it

The numbers of water molecules are designated by prefixes

Question 28

Prefixes for naming hydrates

Answer 28

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

Question 29

monohydrate

Answer 29

1 H20

Question 30

dihydrate

Answer 30

2 H20

Question 31

Trihydrate

Answer 31

3H20

Question 32

Tetrahydrate

Answer 32

4H20

Question 33

Pentahydrate

Answer 33

5H20

Question 34

Hexahydrate

Answer 34

6H20

Question 35

Heptahydrate

Answer 35

7H20

Question 36

Octahydrate

Answer 36

8H20

Question 37

Nonahydrate

Answer 37

9H20

Question 38

Decahydrate

Answer 38

10H20

Question 39

Binary molecular compound rules

Answer 39

binary - means two elements

1. name the first nonmetal and use the proper prefix to designate
   number if it’s 2 or more
   * never use “mono-” for the first element
2. name the second nonmetal and use the proper prefix to designate number
   * when a prefix ends in “a” or “o” and the element’s name begins with “o”,
   drop the “a” or “o” from the prefix
3. binary molecular compounds end in “-ide”

Question 40

Predictable monotomic cations

Answer 40

Elements whose ion charges are predictable from the

-Name of parent atom + “ion”

Question 41

Unpredictable monotomic cations naming formation

Answer 41

Name of parent atom + (charge in roman numerals) + “ion”

ex. Cr^2+ = Chromium (II)

Question 42

What charged ions do group 1 metals form

Answer 42

+1 cations

Question 43

What charged ions do group 2 metals form

Answer 43

+2 cations

Question 44

What charged ions in group 13 (e.g., Al) usually form

Answer 44

+3 cations

Question 45

What charges can SN and Pb form?

Answer 45

2+ or 4+ cations or anions

Question 46

What charged ions do group 15 elements form

Answer 46

+3 anions

Question 47

What charged ions do group 16 elements form

Answer 47

-2 anions

Question 48

What charged ions do group 17 elements form

Answer 48

-1 anions