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Chem ch 11
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extracting metals from their naturally occurring materials and preparing them for use
metallurgy
a naturally occurring material containing a metal in sufficient concentration to make its extraction profitable
ore
what are the four steps in the production of a usefulĀ metal from an ore
concentrate
reduce
refine
shape
what process of ore separation involves mixing crushed rock with oil, water, and detergent and agitating it
flotation
how are alkali metals generally prepared
electrolysis of their molten chloride salts
one of the most widely used chemicals in the US
sodium hydroxide
forms a very strong, lightweight metal used in aircraft and spacecraft
lithium
what chemical process is used today to extract gold from low-grade ores
cyanide process
alloy consisting of 92.5% silver and 7.5% copper by weight
sterling silver
what is primarily used as a fuel in nuclear power plants
uranium
process used to make steel both hard and tuff
case hardening
substance having electrical conductivity thatĀ is intermediate between insulators and conductors
semiconductor
half of the tetrahedrons share two oxygen atoms and the other half share thee oxygen atoms
amphibole asbestos
two-dimensional silicate sheets result when three of the four oxygen atoms are shared between tetrahedrons
mica
what substances mix to form window glass
sodium and calcium silicates
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Author
Rayna
ID
344526
Card Set
Chem ch 11
Description
A Beka 12th grade science
Updated
2019-01-12T02:12:34Z
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