Question

In: Other

**Which of the following physical properties of a mineral depends on the strength of the bonds...

**Which of the following physical properties of a mineral depends on the strength of the bonds that hold its atoms and ions together?

a. color

b. luster

c. specific gravity

d. cleavage

**When the chemical bonds in a mineral are equal in all directions, what will the result be?

a. a nonmetallic luster

b. cleavage

c. conchoidal fracture

d. a low density

**What must be true in order for an ore mineral occurrence to be economically valuable?

a. Natural processes must have concentrated the desired element to greater degree than its average crustal abundance.

b. There must be enough of the ore mineral to make extraction profitable.

c. The sale price of the element must be greater than the costs of mining and extraction.

d. All of the possible answers are correct.

**Polymorphs (minerals like diamond and graphite that have the same chemical composition but are nevertheless different minerals) exist because

a. the elements of which they are made contain atoms of different atomic mass.

b. their mineral structures differ based on the different temperature and pressure conditions under which they formed.

c. impurities are present in the crystal structures.

d. their mineral structures differ due to the effects of the organic processes by which they formed.

**What properties are required for a mineral to be used as (a) an abrasive, (b) jewelry, and (c) a source of iron?

Solutions

Expert Solution

QUESTION:

**Which of the following physical properties of a mineral depends on the strength of the bonds that hold its atoms and ions together?

a. color

b. luster

c. specific gravity

d. cleavage

ANSWER: (D )- cleavage

The physical properties of a mineral depend on the strength of the bonds that hold its atoms and ions together is cleavage.

Example: Feldspar has 2 sets of the cleavage plane

QUESTION:

**When the chemical bonds in a mineral are equal in all directions, what will the result be?

a. a nonmetallic luster

b. cleavage

c. conchoidal fractured. a low density

ANSWER: (C) -conchoidal fracture

When the chemical bonds in a mineral are equal in all directions, what will the result be cnchoidal fracture

Example : Quartz has conchoidal fracture

QUESTION:

**What must be true in order for an ore mineral occurrence to be economically valuable?

a. Natural processes must have concentrated the desired element to greater degree than its average crustal abundance.

b. There must be enough of the ore mineral to make extraction profitable.

c. The sale price of the element must be greater than the costs of mining and extraction.

d. All of the possible answers are correct.

ANSWER: (d)

.                                   All of the possible answers are correct.

QUESTION:

**Polymorphs (minerals like diamond and graphite that have the same chemical composition but are nevertheless different minerals) exist because of

a. the elements of which they are made contain atoms of different atomic mass.

b. their mineral structures differ based on the different temperature and pressure conditions under which they formed.

c. impurities are present in the crystal structures.

d. their mineral structures differ due to the effects of the organic processes by which they formed.

ANSWER: (b)

their mineral structures differ based on the different temperature and pressure conditions under which they formed.

**What properties are required for a mineral to be used as (a) an abrasive, (b) jewelry, and (c) a source of iron?

ANSWER:

To use a mineral as an abrasive, the mineral should have high hardness value.

For example, Diamond is best for abrasive as it has the highest hardness value but remember that it is expensive

For jewelry, the essential property of mineral are bright Lustre and low specific gravity

And for a source of iron, the mineral should have a high magnetic susceptibility


Related Solutions

Which of the following is not a characteristic of a hydrogen bond? a) bond strength depends...
Which of the following is not a characteristic of a hydrogen bond? a) bond strength depends on the angle between the donor and acceptor b) mediates reversible interactions between biomolecules c) the bond has both covalent and ionic characteristics d) contributes to the favorable entropy of the hydrophobic effect e) responsible for the high freezing point and boiling point of water
What physical properties used to identify an unknown mineral aremost useful? Why?
What physical properties used to identify an unknown mineral are most useful? Why?
Which of the following statements about a compound is true? A. The physical and chemical properties...
Which of the following statements about a compound is true? A. The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed. B. Only the physical properties of a compound are usually the same as those of the elements from which it is formed. C. Only the chemical properties of a compound are usually the same as those of the elements from which it is formed. D. The physical...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which are false. true/false  SeF4 has a see-saw structure. true/false  KrF4 is a polar molecule. true/false  NO3- has three resonance Lewis structures. true/false  Bond angles for IF6+ are 90 °. true/false  Selenium tetrafluoride (SeF4) is a non-polar molecule. true/false  The formal oxidation state of an atom in a molecule (or molecular ion) can be calculated as: (the number of valence electrons on a free atom) minus (half the number of electrons...
Which of the following statements is true? a. Due to the strength of covalent bonds, the...
Which of the following statements is true? a. Due to the strength of covalent bonds, the tertiary structures of most proteins are stabilized by one or more disulfide bridges. b. Salt bridging interactions usually provide the greatest degree of stabilization of the native conformation of the protein when they are located on surfaces exposed to water. c. Ramachandran plots are used in determining the hydrophobicity of amino acid side chains in a protein. d. Detergents cause the denaturation of proteins...
State whether the following properties of a substance are physical properties or chemical properties: A. Substance...
State whether the following properties of a substance are physical properties or chemical properties: A. Substance boils at 1105 degrees Celsius. B. Density of the substance at 20 degrees Celsius is 1.738g/cm³. C. The substance burns in air. producing an intense white light. D. The substance reacts with chlorine to give a brittle white solid. E. The substance can be pounded into thin sheets or drawn into wires. F. The substance is a good conductor of electricity.
Which part of the following descriptions of a compound or element refers to its physical properties...
Which part of the following descriptions of a compound or element refers to its physical properties and which to its chemical properties? (a) Calcium carbonate is a white solid with a density of 2.71 g/cm^3. It reacts readily with an acid to produce gaseous carbon dioxide. (b) Gray powdered zinc metal reacts with purple iodine to give a white compound.
Which part of the following descriptions of a compound or element refers to its physical properties...
Which part of the following descriptions of a compound or element refers to its physical properties and which to its chemical properties?
Describe the unique physical and chemical properties of water. Discuss the formation of hydrogen bonds. How...
Describe the unique physical and chemical properties of water. Discuss the formation of hydrogen bonds. How is the fact that water molecules form hydrogen bonds related to the physical and chemical properties of water? Include a brief description of the biological implications of these properties.
how do the types of atomic bonds determine the physical properties of minerals? include four different...
how do the types of atomic bonds determine the physical properties of minerals? include four different types of bonds discussed in the class materials and textbook using examples of specific minerals to illustrate the bond character some properties
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT