Studying Earth's Minerals Question Preview (ID: 53715)
Unit 2 - Chapter 3 Review.
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What subatomic particles make up the atomic mass of an element?
a) protons and neutrons.
b) electrons and neutrons.
c) protons and electrons.
d) protons, neutrons, and electrons
What type of bond is created when electrons are transferred between atoms?
a) hydrogen
b) ionic
c) covalent
d) metallic
Minerals have
a) an exact chemical composition, such as SiO2.
b) a small range in chemical composition, such as (Mg, Fe)2SiO4
c) a large range in chemical composition, such as (Mg, Fe, Al, K, Na)2SiO4
d) no set chemical composition
Each mineral group has a distinctive chemical feature, such as
a) oxides are a metal combined with oxygen
b) sulfides are a metal combined with sulfur and oxygen.
c) halides are a salt combined with a metallic atom.
d) phosphates are made of phosphate polygons
The specific gravity of a mineral
a) is a measure of its density, mass divided by volume
b) is a measure of its mass, the amount of matter in the mineral.
c) compares its density to the density of water.
d) compares its gravity to the gravity of water
Streak is a more reliable property for identifying a mineral than color because
a) all minerals have streak.
b) a minerals color can change over time, but it's streak color does not
c) mineral colors vary, but their streak color does not.
d) streak and color are nearly always the same
If a rock is heated below the surface to more than 1,000oC it will
a) form a metamorphic rock
b) create a magma
c) heat underground water to form vein deposits.
d) form geodes if there is space to do so.
If pure water is evaporated, what is left behind is
a) calcium carbonate, like in tufa towers
b) only the mineral halite
c) the minerals halite, gypsum and other evaporites.
d) nothing
Recycling an aluminum can
a) is not very valuable because aluminum is cheap
b) is extremely energy intensive.
c) uses much less energy than creating useful aluminum from ore
d) is something other people should do
The environmental costs of mining
a) are minimal
b) potentially include pollutants entering streams and the soil.
c) excess sediments clogging streams and lakes
d) b c
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