Which two properties are the most helpful when identifying minerals? EXPLAIN WHY.
Question 36
36.
Question 37
37.
Question 38
38.
Question 39
39.
Question 40
40.
Question 41
41.
Question 42
42.
A mineral has a mass of 4.6g and a volume of 2mL. It also is irregularly shaped with a pearly/dull luster and when scratched with a fingernail it breaks apart. Finally it leaves behind a white mark. Answer the following about this mineral:
a. Luster:
b. Hardness:
c. Crystal shape:
d. Streak:
e. Density:
f. Mineral Name:
The chemical formula for sulfuric acid is H2SO4. How many total atoms are contained in each molecule of sulfuric acid?
6
8
7
2
How many Chlorine atoms does 3MgCl2
2
6
1
3
How many elements does 3MgCl2
2
6
1
3
Which of the following is the correct formula for 6 water molecules?
3H2O
6H2O
H2O6
H2O3
Which of the following is a Element?
Calcium, Ca
Water, H2O
Chocolate Chip Ice Cream
Air
Which of the following is a Compound?
Calcium, Ca
Water, H2O
Chocolate Chip Ice Cream
Air
Which of the following is a Homogeneous Mixture?
Calcium, Ca
Water, H2O
Chocolate Chip Ice Cream
Air
Which of the following is a Heterogeneous Mixture?
Calcium, Ca
Water, H2O
Chocolate Chip Ice Cream
Air
You find material made from these elements H2SO4, which type of matter would it be best described as?
Pure substance and Compound
Pure Substance and Element
Mixture and Homogeneous
Mixture and Heterogeneous
Which of the following is a Sulfide?
BaSO
Mg2SiO4
FeCO
FeO
FeS
Which of the following is a Sulfate?
BaSO
Mg2SiO4
FeCO
FeO
FeS
Which of the following is a Silicate?
BaSO
Mg2SiO4
FeCO
FeO
FeS
Which of the following is a Carbonate?
BaSO
Mg2SiO4
FeCO
FeO
FeS
Which property of mineral leaves a powder behind when you rub it on a tile/plate?
Luster
Cleavage
Streak
Hardness
If a mineral scratches a piece of glass what is the hardness of the mineral?
5.5 or greater
5.5 or less
2.5 or less
2.5-3.5
Which physical property of a mineral is represented by letter A?
Luster
Streak
Cleavage/Fracture
What is the difference between emission and absorption spectrum?
Emission spectras release energy and absorption takes it in
Emission spectras absorb energy and absorption release energy
How many Protons does Gallium have?
31
70
39
How many Nuetrons does Gallium have?
31
70
39
What is the atomic mass of Gallium?
31
70
39
Which best describes a stable atom?
Protons = Neutrons
Protons = Electrons
Protons = Nucleus
If a wave moves 950nm/seconds and passes every 2.3seconds what is the wavelength of this wave? What color is this wave?
412.04nm and Violet
412.04nm and Red
720nm and Violet
720 nm and Red
Which wave has a greater frequency ? How do you know?
Wave A because it has a longer wavelength and more crests pass
Wave A because it has a longer wavelength and less crests pass
Wave B because it has a shorter wavelength and more crests pass
Wave B because it has a shorter wavelength and less crests pass
Which type of observation would the "wavelength" be considered?
Qualitative because it is a numeric piece of data
Quantitative because it is a numeric piece of data
Qualitative because it describes the color
Quantitative because it describes the color
Which type of spectra is pictured below?
Abosorption
Emission
What type of spectra is the one pictured below?
Emission
Absorption
Which element(s) are in the unknown element below?
Calcium & Hydrogen
Iron & Magnesium
Iron
Magnesium
Convert 5 meters to millimeters, show your work below.
50mm
500mm
5000mm
Convert 60 centimeters to meters, show your work below.
60m
0.6m
0.006m
What type of shift is the bottom spectra? What happens to the wavelength?
Absorption Spectra
Red Shifted Spectra with longer wavelength
Blue Shifted Spectra with longer wavelength
Red Shifted Spectra with shorter wavelength
Blue Shifted Spectra with shorter wavelength
Which star is moving away from us?
A
B
Neither
Which picture represents an Atom?
A
B
C
D
Which picture represents a Mixture?
A
B
C
D
Which property is least helpful in identifying minerals?
Luster
Streak
Density
Color
You find a mineral that appears white-yellow it also feels greasy. It leaves behind a white streak. It does not scratch a glass plate and falls apart with a fingernail scratch. It’s chemical formula is H2Mg3(SiO3)4. It has a mass of 25g and a volume of 9.09 cm3. What is the hardness?
Below 2.5
Greater than 2.5
Above 5.5
Below 5.5
You find a mineral that appears white-yellow it also feels greasy. It leaves behind a white streak. It does not scratch a glass plate and falls apart with a fingernail scratch. It’s chemical formula is H2Mg3(SiO3)4. It has a mass of 25g and a volume of 9.09 cm3. What is the density?
2.7g/mL
227g/mL
Below 5.5
You find a mineral that appears white-yellow it also feels greasy. It leaves behind a white powder. It does not scratch a glass plate and falls apart with a fingernail scratch. It’s chemical formula is H2Mg3(SiO3)4. It has a mass of 25g and a volume of 9.09 cm3. What is the streak?
White-yellow
White
Not Available
You find a mineral that appears white-yellow it also feels greasy. It leaves behind a white powder. It does not scratch a glass plate and falls apart with a fingernail scratch. It’s chemical formula is H2Mg3(SiO3)4. It has a mass of 25g and a volume of 9.09 cm3. What is the luster?