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Extraction of Metals from their Ores Worksheet - Coursework Example

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The exercise you are going to complete uses a collection of websites, data tables and charts to lead you through key ideas that you need to in order to understand the relationship between reactivity, price and extraction methods of different metals.
Used to make the alloy…
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Extraction of Metals from their Ores Worksheet
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"Extraction of Metals from their Ores Worksheet"

Download file to see previous pages an alloy with lead called solder/ it was used back in the Bronze Age to make alloys/ it is malleable, ductile and becomes a superconductor at low temperatures
It is used in plumbing and to make electrical wires/it was used even in prehistoric times and was later used to make brass/Very good conductor of electricity, malleable, resistant to corrosion and very unreactive.
It is used mainly for jewellery and decorative purposes, and also for electrical contacts and electroplating/Used in Ancient civilizations especially Egypt for jewellery and ornaments/it is highly unreactive, malleable and ductile.
These elements are strong non-metals and are unstable in their elemental state and they can form stable compounds when reacted with the more reactive metals. Furthermore the reactions that form these compounds are exothermic hence they are favoured and oxygen and sulphur are commonly bonded to metals in their ores.
4. Referring to the table of reactivity for metals on page 231 of your text book, can you see any relationship between the reactivity of the metals and their date of discovery? Describe any relationship you can see.
There is a relationship between the reactivity of elements and their date of discovery; the more reactive elements were discovered later, around the 18th and 19th century, whereas the less reactive elements were discovered at the latest by 1000 BC. More reactive elements such as potassium to magnesium were discovered around the early 19th century, while less reactive elements, starting from zinc to silver were discovered from 1000 BC dating back to as much as 9000 BC.
Method 1: React the metals with cold water, warm water and/or hot water and note the reaction that follows. More reactive metals will react easily with cold water, less reactive metals with react less vigorously with warm water whereas the metals with very low reactivity will not react even with hot water.
Method 2: React the metals with dilute hydrochloric acid. The metals that ...Download file to see next pagesRead More
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