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|Why is GOLD found in the Earth as a metal?
|Because it is so unreactive
|What is the name for rock that is mined were the metal can be extracted economically?
|What are the typical properties of 'Transition Metals'
|The elements in the centre of the periodic table, between groups 2 and 3, are called the transition metals. The metals are Good for building with and making things, strong and malleable. Most are alloys
|Explain why most the metals we use are not elements.
|Elements are two soft and are too easily bent. If used they are usally mixed with other elements so they can sustain their shape.
|What us NOT a property of a substance?
|Cost or cheapness
|What is the word equation to get iron from iron oxide
|Iron Oxide + Carbon = Iron + Carbon Dioxide
|Name 3 types of steel and give a important property for each one
|Low Carbon Steel = Easily Shaped --- High Carbon Steel = Hard/ Solid --- Stainless Steel = Resistant to Corrosion
|Why are all steels Alloys
|Steel is a combination of Iron and Carbon
|Give 3 properties that make aluminium a useful metal
|Low Density --- Resistant to Corrosion --- Malleable ---
|3 Reasons why titanium is expensive
|Electrolysis is needed as high in reactivity series --- Titanium reacts with carbon making it brittle --- several stages are needed to extract from ore ---
|3 reasons why we should recycle aluminium and titanium
|To prevent Environmental damage --- To make earth supply last longer --- It is more Sustainable and CHEAPER
|Name Three Methods used to extract a metal form a ore
|Smelting --- Electrolysis --- Reduction ---