The Reactivity Series of Metals - Unit 2 Topic 1

Question 1

Metal + Oxygen ->

Answer 1

Metal Oxide

Question 2

Metal + Water ->

Answer 2

Metal Hydroxide + Hydrogen

Question 3

Metal + Steam ->

Answer 3

Metal Oxide + Hydrogen

Question 4

Metal + Acid ->

Answer 4

Salt + Hydrogen

Question 5

Potassium reaction with air.

Answer 5

Soft. Shiny which quickly tarnishes.

Burns with a lilac flame.

Question 6

Sodium reaction with air.

Answer 6

Soft. Shiny which quickly tarnishes.

Burns with a yellow flame.

Question 7

Calcium reaction with air.

Answer 7

Forms oxide layer.

Burns with a brick red flame.

Question 8

Magnesium reaction with air.

Answer 8

Forms oxide layer.

Burns with a bright white flame leaving white ash.

Question 9

Aluminium reaction with air.

Answer 9

Forms oxide layer.
Sheets don’t easily burn.
Powder burns with white sparks leaving white solid.

Question 10

Zinc reaction with air.

Answer 10

Forms oxide layer.

Burns leaving yellow solid which cools to white.

Question 11

Iron reaction with air.

Answer 11

Oxide layer rubs off.
Sheets don’t easily burn.
Filings burn with yellow/orange sparks leaving black solid.

Question 12

Copper reaction with air.

Answer 12

Oxide layer rubs off.

Sheets form black oxide layer. Forms without heat.

Question 13

Potassium reaction with water.

Answer 13

Floats, moves around surface. Burns with lilac flame. Hydrogen bubbles released. Colourless solution formed.

Question 14

Sodium reaction with water.

Answer 14

Floats, moves around surface. Melts + forms sphere. Burns with yellow flame. Hydrogen bubbles released.
Colourless solution formed.

Question 15

Calcium reaction with water.

Answer 15

Granules sink, hydrogen bubbles released. Exothermic.

Question 16

Magnesium reaction with water.

Answer 16

Few hydrogen bubbles.

Question 17

Aluminium, Zinc, Iron + Copper reaction with water.

Answer 17

No reaction. Iron rusts after a few days.

Question 18

Magnesium reaction with steam.

Answer 18

Produces bright white light and leaves white powder.

Question 19

Aluminium reaction with steam.

Answer 19

Foil doesn’t react. Small pieces react with oxide layer rubbed off. Powder forms white powder.

Question 20

Zinc reaction with steam.

Answer 20

Glows,produces yellow powder which cools to white.

Question 21

Iron reaction with steam.

Answer 21

Must be heated until glowing red. Forms black solid.

Question 22

Calcium, Magnesium, Aluminium + Zinc reaction with acid.

Answer 22

Hydrogen bubbles produced. Metal disappears. Colourless solution formed. Exothermic.

Question 23

Copper reaction with acid.

Answer 23

No reaction

Question 24

What is a displacement reaction?

Answer 24

A more reactive element displaces a less reactive element from its compound.

Question 25

Observations: Magnesium + copper sulfate

Answer 25

Turns from blue to colourless. Red-brown copper formed.

Question 26

Observations: Magnesium + iron sulfate

Answer 26

Pale green to colourless. Solid formed.

Question 27

Observations: Iron + copper sulfate

Answer 27

Blue to pale green. Solid formed.

Question 28

Observations: Zinc + copper sulfate

Answer 28

Blue to colourless. Solid formed.

Question 29

Observations: Copper + silver nitrate

Answer 29

Colourless to blue. Solid formed.

Question 30

Observations: Magnesium + zinc nitrate

Answer 30

Surface of Mg turns darker/black

Question 31

Observations: Tin + copper sulfate

Answer 31

Surface tarnishes with pink-brown copper layer. Solution colour fades.

Question 32

Observations: Iron + copper sulfate

Answer 32

Surface of iron coated with pink-brown copper. Solution fades.

Question 33

Observations: Zinc + lead nitrate

Answer 33

Surface darkened w/ sparkly crystals.

Question 34

Observations: zinc + copper sulfate

Answer 34

Surface coated with pink-brown copper and blue surface fades.

Question 35

Reactivity Series in order (13)

Answer 35

Potassium, Sodium, Lithium, Calcium, Magnesium, Aluminium, Zinc, Iron, Tin, Lead, Copper, Silver + Gold.