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Criado por Zara Kanani
quase 10 anos atrás
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What do Ores contain?
How are metals which are more reactive than carbon extracted e.g. Aluminium?
Why can electrolysis sometimes not be financially feasible?
What other ways can we extract metals?
Why are we encouraged to recycle metals?
What is an ore?
What happens when we concentrate a metal ore?
What happens when the demand for a metal increases?
Write the word equation for this symbol equation:
2CuO+C= 2Cu+Co2
What is steel?
Why is iron from a blast furnace brittle?
Why are low-alloy steels expensive?
What determines which method we use to extract a metal?
What is copper found as?
Why is electrolysis of copper not worth the effort nowadays?
What metal ore can copper be extracted from?
Extracting copper from malachite equation.
H2SO+CuO=CUSO4+H20
Equation for malachite.
What is copper used for?
What is phytomining?
What is bioleaching?
What is the displacement reaction for copper?
What is reduction?
What is oxidization?
What is a thermit reaction used for?
What property does both Aluminium and Titanium share?
Name some properties of Al (aluminium)?
Al reacts with oxygen and this creates a thin layer of what, to stop the corrosion on the metal?
Name some items which Al is used to make?
Why can gold be found in it's native state?
When is electrolyte used?
What is the name of the positive electrode?
What is the name of the negative electrode?
Definition native state?
What is a smart alloy?
Why is Al difficult to extract?
What does cryolite do?
How do we extract iron from the iron ore?
How is copper obtained from copper rich ores?
If a metal is below carbon in the reactivate series what method is used to extract the metal?
If a metal is above carbon in the reactivity series what method can you use to extract the metal?
What is smelting?
During electrolysis what happens to the positive copper electrodes?