Chemistry Formulae

Question 1

Hydrogen chemical formula + valency

Answer 1

H+ valency 1 because charge is 1

Question 2

Lithium chemical formula + valency

Answer 2

Li+ V1

Question 3

Sodium chemical formula + valency

Answer 3

Na+ V1

Question 4

Potassium chemical formula + valency

Answer 4

K+ V1

Question 5

Copper (I) chemical formula + valency

Answer 5

Cu+ V1

Question 6

Silver chemical formula + valency

Answer 6

Ag+ V1

Question 7

Fluoride chemical formula + valency

Answer 7

F- V1

Question 8

Chloride chemical formula + valency

Answer 8

Cl- V1

Question 9

Bromide chemical formula + valency

Answer 9

Br- V1

Question 10

Iodide chemical formula + valency

Answer 10

I- V1

Question 11

Ammonium chemical formula + valency

Answer 11

NH4+ Valency is 1 because power is 1+

Question 12

Nitrate chemical formula + valency

Answer 12

NO3- V1

Question 13

Hydroxide chemical formula + valency

Answer 13

OH- V1

Question 14

Nitrite chemical formula + valency

Answer 14

NO2- V1

Question 15

Hydrogen sulfate chemical formula + valency

Answer 15

HSO4- V1

Question 16

Hydrogen Carbonate chemical formula + valency

Answer 16

HCO3- V1

Question 17

Chlorate (V) chemical formula + valency

Answer 17

ClO3- V1 ( take note that all wording capital but if element has 2 letters second one always smaller )

Question 18

Manganate ( VII ) chemical formula + valency

Answer 18

MnO4- V1

Question 19

Magnesium chemical formula + valency

Answer 19

Mg2+

Question 20

Calcium chemical formula + valency

Answer 20

Ca2+ V2

Question 21

Lead (II) chemical formula + valency

Answer 21

Pb2+ V2

Question 22

Barium chemical formula + valency

Answer 22

Ba2+ V2

Question 23

Zinc chemical formula + valency

Answer 23

Zn2+ V2

Question 24

Copper (II) chemical formula + valency

Answer 24

Cu2+ V2

Question 25

Iron (II) chemical formula + valency + what is it

Answer 25

Fe2+ V2 ( metallic ion , monoatomic because it’s reached ECG )

Question 26

Tin chemical formula + valency + what is it

Answer 26

Sn2+ V2 mettalic monoatomic ion

Question 27

Manganese (II) chemical formula + valency + what is it

Answer 27

Mn2+ V2 metallic monoatomic ions

Question 28

Oxide chemical formula + valency + what is it

Answer 28

O2- non metallic monoatomic ion V2

Question 29

Sulfide chemical formula + valency + what is it

Answer 29

S2- V2 non metallic monoatomic ion

Question 30

Sulfate chemical formula + valency + what is it

Answer 30

So42- V2 polyatomic ion

Question 31

Carbonate chemical formula + valency + what is it

Answer 31

CO32- V2 polyatomic ion

Question 32

Dichromate (VI)

Answer 32

Cr2O7^2- v2 polyatomic ion

Question 33

Chromate ( VI ) chemical formula + valency + what is it

Answer 33

CrO42- V2 polyatomic ion

Question 34

Sulfite chemical formula + valency + what is it

Answer 34

SO32- V2 POLYATOMIC ION

Question 35

Thiosulfate chemical formula + valency + what is it

Answer 35

S2O3^2- V2 polyatomic ion

Question 36

Aluminium chemical formula + valency + what is it

Answer 36

AL3+ V3 metallic monoatomic ion

Question 37

Iron (III) chemical formula + valency + what is it

Answer 37

Fe3+ V3 metallic monoatomic ion

Question 38

Nitride chemical formula + valency + what is it

Answer 38

N3- V3 non metallic monoatomic ions

Question 39

Phosphide chemical formula + valency + what is it

Answer 39

P3- V3 no metallic monoatomic ion

Question 40

Phosphate chemical formula + valency + what is it

Answer 40

PO4^3- only V3 polyatomic ion

Question 41

Lead ( IV ) chemical formula + valency + what is it

Answer 41

Pb4+ V4 metallic monoatomic ion

Question 42

Manganese (IV) chemical formula + valency + what is it

Answer 42

Mn4+ V4 metallic monoatomic ion

Question 43

Carbide chemical formula + valency + what is it

Answer 43

C4- only v4 non metallic monoatomic ion

Question 44

Ion of valency of 4 and polyatomic ion

Answer 44

Doesn’t exist