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8 Cards in this Set
- Front
- Back
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10.1.1 (Core)
Properties of Metals vs Non-Metals |
Metals vs Non-metals
strong, malleable, ductile and sonorous vs brittle higher vs lower melting points good vs poor conductivity high vs low density both react w. oxygen-form oxides non-metal ions: positive |
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10.1.3 (Core)
Why alloys are used |
Properties of metals can be changed by mixing. Creating an alloy increases the range of uses. Some possible changes in properties: strength, malleability, resistance to corrosion, conductivity.
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10.2.1 (Core)
Reactivity of Metals |
Reactivity series (most to least reactive): potassium, sodium, calcium, magnesium, zinc, iron, hydrogen, copper
Determined by reactivity w. H20 or HCl (Higher on series = More reaactive =Stronger reaction) |
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10.2.2 (Extended)
More on Reactivity |
More reactive = More likely to form positive ions
More reactive = More stable compounds More reactive = More difficult extraction from compounds. More reactive = less likely to be found in pure form. A more reactive metal will displace a les reactive metal in a compound. |
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10.3.1 (Core)
Use of carbon in extraction of ore |
Carbon is used in the extraction of ore in blast funaces. It react with the ore to remove the pure metal. This is used in the extraction of iron and zinc.
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10.3.2 (Extended)
Use of carbon in extraction of iron ore |
Steps
1. Carbon is burned,giving CO2 2. Carbon + CO2 react, give CO 3. Ore (FeO) + CO react, give iron + CO2 |
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10.4.1/10.4.3 (Core)
Uses and Properties of Aluminium |
Aluminium is used to build aircraft, as well as other vehicles such as trains and bikes, and containers for food. It is light, non-toxic, resistant to corrosion, ductile, and strong in alloys.
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10.4.2 (Extended)
Uses of Zinc. |
Zinc is used as sacrificial protection (corroding in the place of another, less reactive metal) and to coat iron or steel, creating a stronger resistance, as well as sacrificial protection if the coating cracks.
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