Final

tailings
the waste after processing mined ore that’s full of impurities such as cyanide, mercury, and sulfuric acid
Longwall mining
considered the most dangerous mining
Electrometallurgy
uses an electrical current to supply electrons to metal ions therefore “reducing them”
pyrometallurgy
oldest ore, treats metals and their ores with heat in a blast furnace
alkali and alkaline earth metals
two families of elements of the periodic table contain most active metals
reusing metallic article
which of the following processes requires the least amount of energy
oxidation
when an atom loses electrons
reduction
a metal is usually obtained from its ore by a process called
silver
what is found uncombined in nature because it resists oxidation?
ductile
can be drawn into thin wires
malleable
easily hammered into sheets
activity series
ranking metals in relative order of their chemical relativities
Lithosphere
“Supply house”
Hydrosphere
H20, ocean water, and other elements such as ions. Water
Atmosphere
This layer contains N2, O2, Ne, and At; anything of air
Crust, Mantle, Core
Earths interior can be divided into 3 major compositional layers, what are they?
crust
composed of lighter elements (Silicon, Oxygen)
mantle
the division of the earth’s interior that contains rocks made of oxygen, cilicon, and magnesium
core
iron and nickel, solid inner core
x

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