4.1 Metal reactions glossary

Question 1

Reactivity series

Answer 1

A list of metals (including carbon and hydrogen) arranged in order of reactivity

Question 2

Displacement

Answer 2

• A reaction where a more reactive metal replaces a less reactive metal in a compound

Question 3

Ionic equation

Answer 3

A chemical equation that only includes ions that react

Question 4

Galvanising

Answer 4

A form of rust prevention by covering a steel object with a layer of zinc

Question 5

Ore

Answer 5

A mixture of a metal-containing mineral

Question 6

Low grade ore

Answer 6

Ores which contain very low concentration of metal minerals

Question 7

Smelting

Answer 7

Process used to extract metals from their ores by heating and melting

Question 8

Reduction (2p)

Answer 8

• Removal of oxygen
• Gaining electrons

Question 9

Oxidation (2p)

Answer 9

• Gain on oxygen
• Loss of electrons

Question 10

Redox

Answer 10

Reaction which involves reduction and oxidation

Question 11

Cast iron

Answer 11

Iron obtained directly from a blast furnace

Question 12

Steel

Answer 12

Alloy of iron and other metals

Question 13

Ion

Answer 13

An electrically charged atom or molecule

Question 14

Acid leaching

Answer 14

Process used to to remove useful metal minerals from an ore

Question 15

Bacterial leaching

Answer 15

Type of solution mining using a special bacteria that respire insoluble metal sulfides

Question 16

Phytomining

Answer 16

Using plants to absorb and concentrate minerals containing metal ions

Question 17

Carat

Answer 17

• Measure of purity of gold
• 24 carat is 100% gold

Question 17

Alloy

Answer 17

mixture of metals