FREE SCIENCE AND STUDY GAMES ABOUT CH.2 FINAL

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FREE SCIENCE AND STUDY GAMES ABOUT CH.2 (FINAL)

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -27 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The ______ group of minerals is characterized by two parallel chains of silica tetrahedra in their structure

Answer:

amphibole

Question 2: ____ is the most common element in the Earth's crust.

Answer:

Oxygen Question 3: (T/F) Minerals that have the same chemical composition but have different crystalline structures exhibit polymorphism

Answer:

True

Question 4: Two examples of framework silicates are _____ and ______.

Answer:

quartz; feldspar

Question 5: (T/F) The atomic mass number is equal to the number of neutrons in an atom.

Answer:

False Question 6: A silica tetrahedron is composed of four atoms of the element ___ and one atom of __.

Answer:

oxygen; silicon Question 7: The third most abundant element in the Earth's crust is ______; it is more common than iron.

Answer:

aluminum Question 8: (T/F) Color is the least reliable physical property in mineral identification.

Answer:

True Question 9: _____ is the ability of a mineral to break, when struck or split, along preferred planar directions.

Answer:

Cleavage

Question 10: (T/F) Silica is a term for oxygen combined with silicon.

Answer:

True Question 11: (T/F) A mineral is defined as a crystalline solid that is naturally occurring, has a specific chemical composition and forms through geologic processes.

Answer:

True Question 12: _______ of an element are atoms containing different numbers of neutrons but the same number of protons

Answer:

Isotopes

Question 13: The most common minerals in the Earth's crust are the _______.

Answer:

silicates Question 14: In order for a particular type of material to be classified as a mineral, it must ____.

Answer:

All of the answers are correct.

Question 15: The two most abundant elements in Earth's crust are __.

Answer:

oxygen and silicon

Question 16: The _____ group of minerals are sheet silicates

Answer:

mica Question 17: Five of the six minerals collectively known as asbestos contain single chains of silica tetrahedral and belong to the _______.

Answer:

pyroxenes

Question 18: (T/F) Both graphite and diamond are made of carbon.

Answer:

True

Question 19: On Mohs' scale of hardness your fingernail has a value of ____.

Answer:

2.5

Question 20: ____ elements make up 98% of the Earth's crust.

Answer:

8

Question 21: (T/F) All of the most common rock-forming minerals in Earth's crust are silicate minerals.

Answer:

True Question 22: (T/F) The atomic number of an element is equal to the number of protons in each atom.

Answer:

True Question 23: The _____ group and the ___ group are sheet silicates characterized by one direction of cleavage.

Answer:

mica; clay

Question 24: The mineral ___ is an example of a native element.

Answer:

graphite Question 25: The atomic number of an element equals the number of _____ in each atom.

Answer:

protons Question 26: (T/F) Rocks are defined as naturally-formed aggregates of minerals or mineral-like substances.

Answer:

True Question 27: The common mineral ___ is an example of an isolated silica tetrahedron structure.

Answer:

olivine