1.1 Writing formulae

Question 1

ion charge of hydroxide

Answer 1

OH -

Question 2

ion charge of carbonate

Answer 2

CO3 2-

Question 3

ion charge of nitrate

Answer 3

NO3 -

Question 4

ion charge of sulphate

Answer 4

SO4 2-

Question 5

ion charge of hydrogencarbonate

Answer 5

HCO3 -

Question 6

ion charge of ammonium

Answer 6

NH4 +

Question 7

ion charge of group 1

Answer 7

+

Question 8

ion charge of group 2

Answer 8

2+

Question 9

ion charge of group 3

Answer 9

3+

Question 10

ion charge of group 4

Answer 10

Do NOT form ions

Question 11

ion charge of group 5

Answer 11

3-

Question 12

ion charge of group 6

Answer 12

2-

Question 13

ion charge of group 7

Answer 13

-

Question 14

ion charge of group 8

Answer 14

Do NOT form ions

Question 15

hydrochloric acid formula

Answer 15

HCl

Question 16

Sulphuric acid

Answer 16

H2SO4

Question 17

Nitric acid

Answer 17

HNO3

Question 18

Metal + Water

Answer 18

Metal hydroxide + hydrogen

Question 19

Metal + acid

Answer 19

Salt + hydrogen

Question 20

Acid + alkali

Answer 20

Salt + Water

Question 21

Acid + Base

Answer 21

Salt + Water

Question 22

Acid + Carbonate

Answer 22

Salt + Water + Carbonate

Question 23

Meaning of redox

Answer 23

electron transfer

Question 24

Oxidation

Answer 24

is electron loss from a species

Question 25

Reduction

Answer 25

is the electron gain from a species

Question 26

Oxidation agent

Answer 26

is an electron accepter

Question 27

Reducing agent

Answer 27

is an electron donar