Reactivity Series test on Friday 14th October 2022

Question 1

Metal + Acid

Answer 1

Salt + Hydrogen

Question 2

Metal + Water

Answer 2

Metal Oxide + Hydrogen

Question 3

Metal + Oxygen

Answer 3

Metal Oxide

Question 4

Acids

Answer 4

Hydrochloride, Sulphuric, Nitric

Question 5

Salts - Metal

Answer 5

Chloride, Sulphate,
Nitrate

Question 6

Metal Chloride

Answer 6

Cl -

Question 7

Metal Sulphate

Answer 7

(SO4)2-

Question 8

Metal Nitrate

Answer 8

(NO3)-

Question 9

Displacement Reaction

Answer 9

more reactive element replaces a less reactive

Question 10

Thermite Reactions (word)

Answer 10

Iron(III) oxide + aluminium → iron + aluminium oxide

Question 11

Thermite Reactions (symbol)

Answer 11

Fe2O3(s) + 2Al(s) → 2Fe(l) + Al2O3(s)

Question 12

Oxidising Agent

Answer 12

Oxidises another substance - reduced in a chemical reaction

Question 13

Reducing Agent

Answer 13

reduces another substance - oxidised in a chemical reaction

Question 14

Oxidation

Answer 14

Loss of electrons

Question 15

Reduction

Answer 15

Gain of electrons

Question 16

Redox Reaction

Answer 16

1. symbol equation
2. Write out the ions
3. remove spectator ion (ion not changed)
4. half equation ( how many electrons added/lost) (reduced/oxidised)

Question 17

Preventing Rust

Answer 17

painting, oil/grease, galvanising (zinc protect iron)

Question 18

best condition for rust

Answer 18

H2O , O2
Water, oxygen

Question 19

rust oxidation reaction

Answer 19

4Fe + 3O2 + xH2O –> 2Fe2O3 ° xH2O

Question 20

galvanising - oxidation of zinc

Answer 20

2Zn + O2 –> 2ZnO