Oxidation
Displacement
General chemistry
Extraction of iron
extraction of aluminium
100

Oxidation is when a substance chemically combines with what element?

oxygen

100

What do we call a rock that contains metal elements?

ore

100

What do we call a list of metals in order from most reactive to least reactive?

reactivity series

100

What is the most common mineral/ raw material in Iron

Haematites (Fe2O3.)

100

What is the process used to extract Aluminium?

electrolysis 

200

What is the chemical formula for oxygen gas?

O

200

What state of matter is copper sulfate in this reaction:

Mg(s) + CuSO4(aq) --> MgSO4(aq) + Cu(s)

aqueous (dissolved in water)

200

What does the symbol (aq) stand for?

aqueous (dissolved in water)

200

What is the reducing agent in the Iron Extraction process for iron oxide?

carbon monoxide
200

What is added to Alumina to reduce the melting point?

Sodium aluminium fluoride (Na3AlF6)

300

What state of matter is the product in this reaction:

2Zn(s) + O2(g) --> 2ZnO(s)

solid

300

Besides plain iron, what is the product of the reaction between iron oxide and potassium?

potassium oxide

300

What salt is formed when copper reacts with sulfuric acid?

copper sulfate

300

As the limestone decomposes, what is the new product?

CaO

300

Why do the Carbon Anode blocks have to be replaced?

Because they are oxidised 

400

What product is formed when copper reacts with oxygen?

copper oxide

400

Why is there no reaction between zinc oxide and lead?

Because lead is less reactive than zinc (or, because zinc is more reactive than lead)
400

What gas is formed when a metal reacts with an acid?

hydrogen

400

Why does Slag form a separate layer from molten iron and float?

Because it is less dense than molten iron, so it floats and can be 'tapped' off.

400

What forms on the surface of a clean Aluminium surface when exposed to air?

Invisible Thin Coating of Aluminium Oxide (AlO)

500

What is the everyday name for iron oxide?

rust

500

What non-metal element is often used to displace less reactive metals like iron and copper?

carbon

500

The Romans made water pipes from which nonreactive metal?

lead

500

What are the three different half equations for Iron?

Fe3+ + 3e- --> Fe Fe3+ + e- --> Fe2+ Fe2+ + 2e- --> Fe

500

What forms above the Molten Cryolite and Aluminium Oxide?

Sodium aluminium oxide crust

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