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Exam 2: Matter and Minerals

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Question 51

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Silicates most commonly form ________.

A) at the surface of the earth
B) from other silicates
C) from cooling molten rock
D) under extreme pressure

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Question 52

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Sulfates always include ________.

A) SiO4-4
B) SO4-2
C) CO3-2
D) Cl-1,F-1,or Br-1

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Question 53

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Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern. -electron atom proton neutron

What physical property denotes the color of a powdered mineral?

What theory dramatically improved geologist's ability to predict where certain ore deposits were formed?

Be is to Mg as ________.

Electrically neutral atoms have equal numbers of electrons and protons.

Which mineral reacts readily with cool,dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?

Atoms of the same element,zinc for example,have the same number of ________.

The strong tendency of certain minerals to break along smooth,parallel planes is known as ________.

Quartz sand is a useless commodity unless you want to rebuild a beach.

The most common group of rock forming minerals is ________.

All minerals exhibit cleavage.

Gold is one of the rarest elements in the universe,yet it is extracted from ores on Earth.How is this possible?

Limestone is composed almost entirely of calcite which has the chemical formula CaCO3.As a result,limestone is classified as ________.

A mineral can be composed entirely of one element.

Electrical attractions between atoms lower the total energy of the bonded atoms and make them more stable.

quartz olivine feldspar calcite

Gypsum,which is widely used in plaster and wallboard,is a member of the ________ group.

The first minerals to be mined were ________ and ________.