5266135
Descripción
Mapa Mental por Catherine Irvine, actualizado hace más de 1 año
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Creado por Catherine Irvine
hace más de 8 años
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Metals and their Uses
- Extracting
metals
- Ores
- Rocks which contain enough metal to
make extraction economically viable
- Ores may be
concentrated first
- Rocks which contain enough metal to
make extraction economically viable
- Methods of extraction
- Electrolysis
- Metals more reactive than carbon
- OIL RIG
- Oxidation is loss
- Positive ions move away from the positive electrode and towards the negative electrode
- Positive ions move away from the positive electrode and towards the negative electrode
- Reduction is gain
- The negative electrode gains positive ions
- The negative electrode gains positive ions
- Oxidation is loss
- Metals more reactive than carbon
- Reduction
- Metals less reactive than carbon
- heating
with
carbon
- CuO +H2 = Cu + H20
- Metals less reactive than carbon
- Other
- Smelting
- Used for copper
- Used for copper
- Phytomining
- Uses plants to absorb metal compounds
- Plants are burnt to produce ash that
contains compounds
- Plants are burnt to produce ash that
contains compounds
- Uses plants to absorb metal compounds
- Bioleaching
- Uses bacteria to produce leachate solutions which
contain metal compounds
- Uses bacteria to produce leachate solutions which
contain metal compounds
- Smelting
- Electrolysis
- Ores
- Alloys
- most metals used in every day life are alloys as pure metals are too soft by themself
- Mixing metals makes them harder
- Mixing metals makes them harder
- Iron
- Iron from the blast furnace is 96% pure iron
- The impurities make it brittle
- Most irons are mixed with carbon to make steel
- Low carbon steels are easily shaped
- High carbon steels are hard
- Stainless steals are resistant to corrosion
- Low carbon steels are easily shaped
- The impurities make it brittle
- Iron from the blast furnace is 96% pure iron
- most metals used in every day life are alloys as pure metals are too soft by themself
- Properties and uses of
metals
- Transition metals
- Elements in the middle of the periodic
table
- Elements in the middle of the periodic
table
- Properties
- Can be bent or hammered into
shape
- Good conductors of heat
- Good conductors of electricity
- Useful structural materials
- Can be bent or hammered into
shape
- Copper
- Useful for plumbing and electrical wiring
- Doesn't react with water
- Is a good conductor of heat and electricity
- Is hard but malleable
enough to be used for pipes
- Doesn't react with water
- Useful for plumbing and electrical wiring
- Aluminium and Titanium
- Useful metals
- Resistance to corrosion
- Low density
- Resistance to corrosion
- Useful metals
- Transition metals
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