12. The Reactivity Series

Question 1

How are metals arranged in the reactivity series?

Answer 1

• Most reactive to least reactive

Question 2

Reactions of metals with cold water

Answer 2

1. Metal+ water = metal hydroxide+ hydrogen
2. Only potassium, sodium, calcium and magnesium can react with cold water

Question 3

Reaction of metals with steam

Answer 3

1. Metal + steam= metal oxide + hydrogen
2. Only magnesium, zinc and iron can react with steam

Question 4

Reaction of metals with dilute hydrochloric acid

Answer 4

1. Metal + dilute hydrochloric acid= metal chloride + hydrogen
2. Only lead, copper and silver CANNOT react with dilute hydrochloric acid

Question 5

List the reactivity series out

Answer 5

1. Potassium
2. Sodium
3. Calcium
4. Magnesium
5. [Carbon]
6. Zinc
7. Iron
8. [Hydrogen]
9. Lead
10. Copper
11. Sliver

Question 6

Metal Displacement reaction

Answer 6

Only the more reactive metal can displace a less reactive metal from its salt solution or oxide

Question 7

The process of Electrolysis

Answer 7

• It is the process of using electricity to decompose the molten metal compound to the metal
• Only the metals above the Carbon in the reactivity series can undergo this process

Question 8

The process of reduction with carbon

Answer 8

1. By reducing the metal compound to the metal using carbon
2. Metal below carbon can undergo this process

Question 9

Conditions of Rusting

Answer 9

1. Oxygen
2. Water
3. would produce a reddish-brown substance on the surface of metal

Question 10

Rust prevention

Answer 10

1. Painting
2. Oiling
3. Creasing