Unit 2 HW ?'s

Question 1

What is one way elements in the periodic table are arranged?

Answer 1

In order of atomic #

Question 2

What are the 3 major types of subatomic particles?

Answer 2

Proton; Neutron; Electron

Question 3

what is true of elements in the same column on the periodic table?

Answer 3

they have similar arrangements of electrons

Question 4

What is a compound?

Answer 4

A substance made of CHEMICALLY bound atoms of 2 or more different elements

Question 5

How do atoms form chemical bonds?

Answer 5

By sharing or transferring electrons

Question 6

What is an alloy?

Answer 6

A solution of two or more metals

Question 7

What does the subscript “2” mean in the chemical formula CO2?

Answer 7

Two atoms of oxygen

Question 8

What is the smallest unit of an element that keeps all the chemical properties of a substance?

Answer 8

Atom

Question 9

What is true of an atom with 8 valence elctrons?

Answer 9

It is stable

Question 10

What is a mixture?

Answer 10

To or more substance NOT chemically combined

Question 11

What describes silicate crystalline structures?

Answer 11

Sheet; isolated; ring

Question 12

A framework silicate is one in which

Answer 12

Each tetrahedron is bonded to 4 others

Question 13

A mineral is a natural, usually inorganic solid that has characteristic chemical composition,

Answer 13

An orderly internal structure, and characteristic physical properties

Question 14

Color is unreliable for identifying minerals because

Answer 14

small amounts of other elements affect color, and weathered surfaces may HIDE color

Question 15

What is the ability of a mineral to resist scratching called?

Answer 15

Hardness

Question 16

A silicate mineral contains a combination of

Answer 16

Silicon and Oxygen

Question 17

A nonsilicate mineral is one that does not contain compounds of

Answer 17

Silicon and Oxygen

Question 18

What is true of single-chain, double-chain, and framework arrangements?

Answer 18

There are all types of silicate crystalline structures

Question 19

Which are common nonsilicate crystalline structures?

Answer 19

cubes; hexagonal prisms; irregular masses

Question 20

What is true of the ions at the center of nonsilicate tetrahedra?

Answer 20

they are NOT silicon ions

Question 21

Is Gneiss foliated or nonfoliated?

Answer 21

Foliated

Question 22

What does NOT affect the stability of rocks?

Answer 22

intensity of color

Question 23

What factor does NOT affect how a rock melts?

Answer 23

light

Question 24

What causes rock to change in regional metamorphism?

Answer 24

Rock changes result from changes in temperature and pressure

Question 25

The process by which different minerals in rock melt at different times is called….

Answer 25

partial melting

Question 26

A common zone of weakness is called….

Answer 26

a joint

Question 27

Magma or Igneous rock that is rich in feldspar and silica is…

Answer 27

felsic

Question 28

What is NOT a feature of sedimentary rock?

Answer 28

marble

Question 29

The process that produces coal deposits is…

Answer 29

carbonization

Question 30

Hydrothermal solutions moving through small cracks in rock may leave behind

Answer 30

ore deposits

Question 31

an example of a valuable nonmetallic mineral is…

Answer 31

gemstone

Question 32

Where is a favorable location for a wind farm?

Answer 32

Mountain pass

Question 33

What are fossil fuels primarily consisted of?

Answer 33

hydrocarbons

Question 34

a substance that can be obtained through placer mining is…

Answer 34

gold

Question 35

What is the purpose of a catalytic converter?

Answer 35

Reduce air pollution caused by auto emissions