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Extraction of Metals

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Total cards: 21•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (21)

#1
Front (Question)

Ore of zinc?

Back (Answer)

Zinc Blende (ZnS)

#2
Front (Question)

Ore of aluminium

Back (Answer)

Bauxite (Al2O3)

#3
Front (Question)

Ore of iron

Back (Answer)

Hematite (Fe2O3

#4
Front (Question)

Raw materials of a blast furnace:

Back (Answer)

• haematite • coke • limestone (CaCO3)

#5
Front (Question)

Why is coke used in a blast furnace?

Back (Answer)

To produce CO to reduce the iron ore

#6
Front (Question)

Describe the process in a blast furnace

Back (Answer)

• Coke burns in the hot air to produce CO2 • CO2 is reduced to CO • CO reduces haematite to iron • Limestone undergoes thermal decomposition, producing CaO and CO2 • CaO combined with SiO2 (sand) to form CaSiO3 (calcium silicate)

#7
Front (Question)

Describe the extraction process of zinc

Back (Answer)

• Zinc blende is heated strongly in the presence of oxygen to convert zinc sulphide to zinc oxide • Zinc oxide is reduced with carbon

#8
Front (Question)

Common forms of metal found naturally?

Back (Answer)

Metal carbonates/sulphides/oxides

#9
Front (Question)

What does the anode typically produce?

Back (Answer)

Nonmetals, or oxygen

#10
Front (Question)

What does the cathode typically produce?

Back (Answer)

Metals, or hydrogen

#11
Front (Question)

What happens during electrolysis?

Back (Answer)

• A direct current passes through the electrolyte 2. Electrical energy is changed to chemical energy

#12
Front (Question)

[cathode] ease of discharge chart

Back (Answer)

Fluorine Sulphate Nitrate Chlorine Bromine Iodine Hydroxide

#13
Front (Question)

Common inert electrodes:

Back (Answer)

• carbon - platinum

#14
Front (Question)

Common active electrodes:

Back (Answer)

Copper, silver

#15
Front (Question)

How are results different with concentrated electrolytes?

Back (Answer)

Concentrated ions tend to crowd out other ions, and so obtain preference for discharge.

#16
Front (Question)

Anions that will never be discharged in electrolysis

Back (Answer)

Fluorine, sulphate, nitrate, carbonate

#17
Front (Question)

Cations that will never be discharged in electrolysis

Back (Answer)

Potassium, sodium, calcium, magnesium, aluminium

#18
Front (Question)

Why use electroplating:

Back (Answer)

• improves appearance of a metal - prevents corrosion of metal

#19
Front (Question)

What is an electrochemical cell?

Back (Answer)

A device that converts chemical energy to electrical energy. It consists of electrodes (2 different metals) and an electrolyte solution.

#20
Front (Question)

How is the anode/cathode determined when electrodes are made of 2 different metals?

Back (Answer)

The more reactive metal becomes the anode by losing electrons.

#21
Front (Question)

Define electrolysis:

Back (Answer)

Breaking down substances using electricity