Chapter 2, Matter and Minerals Video Solutions, Earth Science

Problem 1

Using the geologic definition of mineral as your guide, determine which of the items in this list are minerals and which are not. If something in this list is not a mineral, explain.
a. Gold nugget
d. Cubic zirconia
g. Glacial ice
b. Seawater
e. Obsidian
h. Amber
c. Quartz
f. Ruby
Refer to the periodic table of the elements (see Figure 2.5 ) to help you answer Questions 2 and 3 .

Amy Jiang

Numerade Educator

01:07

Problem 2

Assume that the number of protons in a neutral atom is 92 and its mass number is 238 .
a. What is the name of the element?
b. How many electrons does it have?
C. How many neutrons does it have?

Narayan Hari

Numerade Educator

00:39

Problem 3

Which of the following elements is more likely to form chemical bonds:
xenon (Xe) or sodium (Na)? Explain why.

Mary Shields

Numerade Educator

02:09

Problem 4

Referring to the accompanying photos of five minerals, determine which of these specimens exhibit a metallic luster and which have a nonmetallic luster. (Photos by Dennis Tasa and E. J. Tarbuck)

Nicole Smina

Numerade Educator

01:11

Problem 5

Gold has a specific gravity of almost $20 .$ A 5 -gallon bucket of water weighs 40 pounds. How much would a 5 -gallon bucket of gold weigh?

James Erikson

Numerade Educator

01:09

Problem 6

Examine the accompanying photo of a mineral that has several smooth, flat surfaces that resulted when the specimen was broken.
a. How many flat surfaces are present on this specimen?
b. How many different directions of cleavage does this specimen have?
c. Do the cleavage directions meet at 90-degree angles?

Mayukh Banik

Numerade Educator

01:45

Problem 7

Each of the following statements describes a silicate mineral or mineral group. In each case, provide the appropriate name.
a. The most common member of the amphibole group
b. The most common light-colored member of the mica family
c. The only common silicate mineral made cntirely of silicon and oxygen
d. A silicate mineral with a name that is based on its color
e. A silicate mineral that is characterized by striations
f. A silicate mineral that originates as a product of chemical weathering

Vishal Sharma

Numerade Educator

02:09

Problem 8

What mineral property is illustrated in the accompanying photo?

Nicole Smina

Numerade Educator

02:34

Problem 9

Do an Internet search to determine what minerals are extracted from the ground during the manufacture of the following products.
a. Stainless steel utensils
b. Cat litter
C. Tums brand antacid tablets
d. Lithium batteries
e. Aluminum beverage cans

Crystal Wang

Numerade Educator

02:03

Problem 10

Most states have designated a state mineral, rock, or gemstone to promote interest in the state's natural resources. Describe your state mineral, rock, or gemstone and explain why it was selected. If your state does not have a state mineral, rock, or gemstone, complete the exercise by selecting one from a state adjacent to yours.

Lottie Adams

Numerade Educator