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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15. $100 What is an alloy?. Mixture of elements. Compound of elements. A:. B:. Compound of elements, one of them a metal. Mixture of elements, one of them a metal. C:. D:. Excellent!. Unlucky!. That ’ s incorrect. $200 - PowerPoint PPT PresentationTRANSCRIPT
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A: B:Mixture of elements Compound of elements
$100What is an alloy?
C: D: Mixture of elements, one of them a metal
Compound of elements, one of them a metal
Excellent!
Unlucky!
That’s incorrect
A: B:They are too soft They are too hard
$200What is the problem with many pure metals?
C: :They are too brittle They are too reactive
Excellent!
Sorry
That’s incorrect…
A: B:More soft More reactive
$300Adding impurities to metal makes it…..?
C: D: More pureMore hard
Fantastic
Oh dear!
That’s incorrect…
A: B:Copper and zinc Aluminium and titanium
$500Brass is an alloy of?
C: D:Iron and carbon Mercury and tin
Brilliant
Sorry
That’s incorrect…
A: B:It is always native
$1,000Why have we known how to extract copper
for many centuries?
C: D:It can’t be reduced
It is reactive
It is not very reactive
Well done!
Unlucky!
A: B:
C: D:
They are strong and light
They are strong and heavy
They are easy to extract
They are cheap to make
$2,000Why are aluminum and titanium useful?
Super!
Oh no!
That’s incorrect!…
A: B:Reduction Displacement
$4,000Reactive metals need to be separated from their ores using?
C: D:Electrolysis Oxidation
Very good!
Incorrect
So near and yet so far!
A: B:They are unreactive They are reactive
$8,000Why don’t aluminum and titanium corrode easily?
C: D:They form a protective oxide coating
They are alloys
Very good!
Sorry!
That’s incorrect…
A: B:The ores have got to be melted first
$16,000Which is not true for electrolysis?
C: D:It uses a lot of energy
The ores must have impurities removed
It is cheap
Very good!
Unlucky
That’s incorrect…
DigestionA: B: They both involve reduction
$32,000Which is a not problem with extracting aluminum and titanium?
C: D:
They are expensive
DigestionThey involve many stages
They use a lot of energy
Brilliant!
Unfortunately…
That’s incorrect!
A: B:Alkali metals Alkaline earth metals
$64,000Which part of the periodic table to we find most of the useful metals?
C: D:Transition metals Magnetic metals
Well done!
I’m sorry
That’s incorrect…
A: B:Displacement Reduction
$125,000How is titanium actually separated from its ore?
C: D:Smelting Electrolysis
Very good!
Incorrect
You should have got that one!
A: B:Malachite Loadstone
$250,000What is aluminum ore called?
C: D:Haematite Bauxite
Excellent!
Wrong Choice!
That’s incorrect…
A: B:They aren’t very reactive
They are rare
$500,000Why were certain metals discovered fairly recently?
C: D:There can only be extracted with electrolysis
They are buried deep underground
Very Good!
Sorry!
That’s incorrect…
A: B:
$ 1,000,000 What does ductile mean?
C: D:Can be drawn into wires
Can be shaped easily
Hard
Brittle
Fantastic!
Unlucky
You were nearly a millionaire!
Thank you for playing!Thank you for playing!
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