the reactivity series

Question 1

What is the order of reactivity of metals from most reactive to least reactive?

Answer 1

Potassium, Sodium, Calcium, Magnesium, Aluminum, Zinc, Iron, Tin, Lead, Copper, Silver, Gold

Question 2

True or False: Gold is more reactive than Sodium.

Answer 2

False

Question 3

Fill in the blank: The most reactive metal is __________.

Answer 3

Potassium

Question 4

Which metal is less reactive: Iron or Zinc?

Answer 4

Iron

Question 5

What type of reaction occurs when a more reactive metal displaces a less reactive metal from its compound?

Answer 5

Displacement reaction

Question 6

What is the reactivity series?

Answer 6

in the reactivity series, metals are arranged from the most reactive to the least

Question 7

True or False: Potassium is more reactive than gold.

Answer 7

True

Question 8

Which of the following metals is least reactive? A) Sodium B) Copper C) Calcium

Answer 8

B) Copper

Question 9

What happens to the reactivity of metals as you move down the reactivity series?

Answer 9

The reactivity of metals decreases as you move down the series.

Question 10

Which metals react with cold water?

Answer 10

metals such as sodium and potassium react with cold water.

Question 11

True or False: Magnesium reacts with steam.

Answer 11

True

Question 12

Multiple Choice: Which of the following metals does NOT react with cold water? A) Lithium B) Calcium C) Copper D) Sodium

Answer 12

C) Copper

Question 13

What is one of the primary conditions necessary for rusting to occur?

Answer 13

Presence of water or moisture.

Question 14

True or False: Rusting can occur in the absence of oxygen.

Answer 14

False.

Question 15

Fill in the blank: Rusting is an electrochemical process that requires both ______ and water.

Answer 15

oxygen

Question 16

Which of the following factors increases the rate of rusting? A) High humidity B) Low temperature C) Dry environment

Answer 16

A) High humidity

Question 17

What type of metal is primarily affected by rusting?

Answer 17

Iron.

Question 18

What is rust?

Answer 18

Rust is a type of corrosion that occurs when iron or its alloys react with oxygen and moisture.

Question 19

True or False: Applying a coat of paint can help prevent rust.

Answer 19

True

Question 20

Fill in the blank: The process of applying a protective layer to metal to prevent rusting is known as __________.

Answer 20

galvanization

Question 21

Which of the following is NOT a method of rust prevention? A) Galvanizing B) Painting C) Exposing to saltwater

Answer 21

C) Exposing to saltwater

Question 22

What role does moisture play in the formation of rust?

Answer 22

Moisture acts as an electrolyte, facilitating the electrochemical reactions that lead to rust.

Question 23

what does metal plus water form?

Answer 23

metal hydroxide + hydrogen

Question 24

metal + steam?

Answer 24

metal oxide + hydrogen

Question 25

metal + hydrochloric acid?

Answer 25

metal chloride + hydrogen

Question 26

what reacts with cold water, steam and acid

Answer 26

potassium, sodium, calcium and magnesium

Question 27

potassium and sodium reaction

Answer 27

- reacts violently with cold water - explode with steam - explode with dilute hcl

Question 28

calcium reaction

Answer 28

- reacts slowly with cold water - explodes with steam - react violently with hcl

Question 29

magnesium reaction

Answer 29

- reacts slowly with cold water - reacts violently with steam -react rapidly with hcl

Question 30

zinc reaction

Answer 30

- no reaction with cold water - react readily with steam - react fast with hcl

Question 31

iron reaction

Answer 31

- no reaction with cold water - reacts slowly with steam - reacts slowly with hcl

Question 32

lead copper silver gold reaction

Answer 32

- no reaction with cold water no reaction with steam - no reaction with hcl