Chemical equations

Question 1

Ammonium

Answer 1

NH₄⁺

Question 2

Chlorate

Answer 2

(ClO3)−

Question 3

Ethanoate

Answer 3

(C2H3O2)−

Question 4

Hydroxide

Answer 4

(OH)−

Question 5

Nitrate

Answer 5

(NO3)−

Question 6

Nitrite

Answer 6

(NO₂)−

Question 7

Permanganate

Answer 7

(MnO4)−

Question 8

Hydrogen Carbonate (Bicarbonate)

Answer 8

(HCO3)−

Question 9

Hydrogen Sulphate

Answer 9

HSO4

Question 10

Carbonate

Answer 10

(CO3)2−

Question 11

Dichromate

Answer 11

(Cr2O7)2−

Question 12

Sulphate

Answer 12

(SO4)2−

Question 13

Sulphite

Answer 13

(SO3)2-

Question 14

Phosphate

Answer 14

(PO4)3−

Question 15

What phase of matter is represented by (s)?

Answer 15

Solid

Question 16

What phase of matter is represented by (l)?

Answer 16

Liquid

Question 17

What phase of matter is represented by (g)?

Answer 17

Gas

Question 18

What phase of matter is represented by (aq)

and what does it mean?

Answer 18

Aqueous solution. This means disolved in water. (water is the solvent)

Question 19

Conservation of atoms

Answer 19

The number of atoms remains the same during the course of the reaction. This means the number of atoms at the megining will be the same at the end of the reaction

Question 20

Conservation of mass

Answer 20

The total mass of a closed reaction system will remain constant.