Metals Revision

How are more reactive metals found in the Earth's crust?

• Rock

• Ore

• Dust

• Pure/Uncombined

How could you extract a metal from an ore?

• Use heat

• Use water

• Break it open

• You don't

What method could you use to spilt a compound back into it's individual elements?

• Heating

• Condensation

• Electrolysis

• Electroplating

Metals that are good at transferring heat are....

• Thermal Conductors

• Electrical Conductors

• Malleable

• Ductile

Metals that are easily made into wires are...

• Electrical Conductors

• Malleable

• Ductile

• Thermal Conductors

What property do all metals have?

• They are soluble in water.

• They conduct electricity.

• They have low melting points.

• They have low densities.

Which metal would be the best to make the body of an aircraft?

• Resistance to corrosion: high

  Density: high

• Resistance to corrosion: High

  Density: low

• Resistance to corrosion: low

  Density: high

• Resistance to corrosion: low

  Density: low

An excess of iron filings is added to a solution containing a mixture of the ions Mg²⁺, Ca²⁺, Cu²⁺ and Ag⁺.

Which two metals will be displaced from this solution?

• Calcium and copper

• Copper and silver

• Calcium and magnesium

• Magnesium and silver

Three experiments to investigate the reactivity of three metals are shown.

What is the correct order of reactivity for these three metals?

(from most reactive to least reactive)

• Chromium, Manganese, Nickel

• Manganese, Chromium, Nickel

• Manganese, Nickel, Chromium

• Nickel, Chromium, Manganese

Four experiments on rusting are shown.

Which two experiments can be used to show that air is needed for iron to rust?

• 1 and 3

• 1 and 4

• 2 and 3

• 2 and 4