Polyatomic Ions

Question 1

NO₂⁻

Answer 1

Nitrite

Question 2

NH₄⁺

Answer 2

Ammonium

Question 3

NO₃⁻

Answer 3

Nitrate

Question 4

SO₄²⁻

Answer 4

Sulfate

Question 5

HSO₄⁻

Answer 5

Hydrogen sulfate

Question 6

SO₃²⁻

Answer 6

Sulfite

Question 7

HSO₃⁻

Answer 7

Hydrogen sulfite

Question 8

S₂O₃²⁻

Answer 8

Thiosulfate

Question 9

PO₄³⁻

Answer 9

Phosphate

Question 10

HPO₄²⁻

Answer 10

Hydrogen phosphate

Question 11

H₂PO₄⁻

Answer 11

Dihydrogen phosphate

Question 12

PO₃³⁻

Answer 12

Phosphite

Question 13

CO₃²⁻

Answer 13

Carbonate

Question 14

HCO₃⁻

Answer 14

Hydrogen carbonate

Question 15

C₂O₄²⁻

Answer 15

oxalate

Question 16

CN⁻

Answer 16

Cyanide

Question 17

ClO₄⁻

Answer 17

Perchlorate

Question 18

ClO₃⁻

Answer 18

Chlorate

Question 19

ClO₂⁻

Answer 19

Chlorite

Question 20

ClO⁻

Answer 20

Hypochlorite

Question 21

H₃O⁺

Answer 21

Hydronium

Question 22

OH⁻

Answer 22

Hydroxide

Question 23

MnO₄⁻

Answer 23

Permanganate

Question 24

CrO₄²⁻

Answer 24

Chromate

Question 25

Cr₂O₇²⁻

Answer 25

Dichromate

Question 26

Nitrate

Answer 26

NO₃ -

Question 27

Nitrite

Answer 27

NO₂ -

Question 28

Ammonium

Answer 28

NH₄ -

Question 29

Azide

Answer 29

N₃ -

Question 30

Sulfate

Answer 30

SO₄ -2

Question 31

Hydrogen sulfate

Answer 31

HSO₄ -

Question 32

Sulfite

Answer 32

SO₃ -2

Question 33

hydrogen sulfite

Answer 33

HSO₃ -

Question 34

thiosulfate

Answer 34

S₂O₃ -2

Question 35

phosphate

Answer 35

PO₄ -3

Question 36

hydrogen phosphate

Answer 36

HPO₄ -2

Question 37

dihydrogen phosphate

Answer 37

H₂PO₄ -

Question 38

phosphite

Answer 38

PO₃ -3

Question 39

carbonate

Answer 39

CO₃ -2

Question 40

hydrogen carbonate

Answer 40

HCO₃ -

Question 41

oxalate

Answer 41

C₂O₄ -2

Question 42

C₂H₃O₂ -

Answer 42

acetate

Question 43

acetate

Answer 43

C₂H₃O₂ -

Question 44

cyanide

Answer 44

CN₄ -

Question 45

perchlorate

Answer 45

ClO₄ -

Question 46

chlorate

Answer 46

ClO₃ -

Question 47

chlorite

Answer 47

ClO₂ -

Question 48

hypochlorite

Answer 48

ClO -

Question 49

hydronium

Answer 49

H₃O +

Question 50

hydroxide

Answer 50

OH -

Question 51

permanganate

Answer 51

MnO₄ -

Question 52

chromate

Answer 52

CrO₄ -2

Question 53

dichromate

Answer 53

Cr₂O₇ -2

Question 54

the (3) “ates”
nitrate
carbonate
chlorate

Answer 54

NO₃
CO₃
ClO₃

Question 55

the (4) “ates”
sulfate
phosphate
chromate

Answer 55

SO₄
PO₄
CrO₄

Question 56

Name the only two positive polyatomic ions

Answer 56

NH₄ (ammonium)

H₃O (hydronium)

Question 57

2- charged ions

8 of them

Answer 57

SO₄²- (sulfate)
SO₃²- (sulfite)
S₂O₃²- (thiosulfate)
HPO₄²- (hydrogen phosphate)
CO₃²- (carbonate)
C₂O₄²- (oxalate)
CrO₄²- (chromate)
Cr₂O₇²- (dichromate)

Question 58

3- charged ions

Answer 58

PO₄³- (phosphate)

PO₃³- (phosphite)