Question 1

In the rock-salt structure (NaCl), the cations occupy all the octahedral holes.

Accepted Answer

A) True 
 B)False

Question 2

Silicon carbide, SiC,
Is what type of material?

Accepted Answer

A)  An ionic compound. 
B)  A covalent boride.  
C)  An allotrope of carbon.  
D)  A molecular solid.  
E)  A covalent carbide.

Question 3

Which of the following cations is likely to be hydrated in compounds?

Accepted Answer

A)  Rb+  
B)  Li+  
C)  K+  
D)  Cs+  
E)  NH4+

Question 4

What is the definition of a ceramic?

Accepted Answer

A)  An organic material that has been hardened by heating to a high temperature. 
B)  An inorganic material that has been hardened by heating to a high temperature. 
C)  An inorganic material that has been shaped or molded by heating to a high temperature. 
D)  An organic material that has been shaped or molded by heating to a high temperature. 
E)  A clay without hydrates within it.

Question 5

Which has the higher boiling point,
HCl or HI?

Accepted Answer

The answer of Which has the higher boiling point,
HCl or...

Question 6

What is the molar volume of a nitrogen gas at -27.0S1U1P1oS1S1P0C and 1 atm?

Accepted Answer

A)  2.22 L 
B)  22.4 L 
C)  24.6 L 
D)  20.2 L

Question 7

Ammonium nitrate can decompose according to the following equation:
NHS1U1B14S1U1B0NOS1U1B13S1U1B0(s)$\rightarrow$NS1U1B12S1U1B0O(g)+2HS1U1B12S1U1B0O(g)
How many liters of gas are produced by decomposition of 160 g of ammonium nitrate at -25S1U1P1$\omicron $S1S1P0C and 86.0 kPa?

Accepted Answer

A)  48.0 
B)  14.5 
C)  57.6 
D)  173 
E)  144

Question 8

Calculate the mass of oxygen gas required to occupy a volume of 6.00 L at a pressure of 20.9 kPa and a temperature of 37.0S1U1P1$\circ$S1S1P0C.

Accepted Answer

A)  1.56 g 
B)  0.408 g 
C)  0.779 g 
D)  13.1 g 
E)  0.0487 g

Question 9

What is the coordination number of cesium in CsCl? The ionic radii of CsS1U1P1+S1S1P0 and ClS1U1P1-S1S1P0 are 170 and 181 pm, respectively.

Accepted Answer

A)  12 
B)  8 
C)  2 
D)  4 
E)  6

Question 10

Consider the following reaction:
2KS1U1B12S1U1B0COS1U1B13(s)S1U1B0 + 3OS1U1B12(g)S1U1B0 $\rarr$ 4KOS1U1B12(s)S1U1B0 + 2COS1U1B12(g)S1U1B0
How many moles of KS1U1B12S1U1B0COS1U1B13S1U1B0 are needed to react with 35.0 L of oxygen at STP?

Accepted Answer

A)  22.4 
B)  0.52 
C)  1.04 
D)  2.34 
E)  33.6

Question 11

Brass is an example of what kind of metal?

Accepted Answer

A)  A pure elemental metal. 
B)  An ionic metal. 
C)  An alloy. 
D)  An amalgam. 
E)  None of the above.

Question 12

Which of the following can form intermolecular hydrogen bonds?

Accepted Answer

A)  NH2CH2COOH 
B)  SiH4 
C)  CH3COCH3 
D)  H2CO 
E)  CH3Cl

Question 13

Metals with a hexagonal close-packed structure have/do not have slip planes and as a result are malleable/brittle.

Accepted Answer

The answer of Metals with a hexagonal close-packed structure have/do...

Question 14

How many atoms of helium occupy 100.0 mL if the temperature is 100.°C and the pressure is 1.00 × 10-2 Torr?

Accepted Answer

A)  2.00 × 1019 
B)  3.26 × 10-5 
C)  1.97 × 1013 
D)  4.00 × 1019 
E)  6.02 × 1023

Question 15

Which of the following has the highest boiling point?

Accepted Answer

A)  CH3CH2CH2CH2CH2Br 
B)  CH3CH2CH2CH2CH2I 
C)  CH3CH2CH2CH2CH3  
D)  CH3CH2CH2CH2CH2F 
E)  CH3CH2CH2CH2CH2Cl

Question 16

The atomic radius of zinc is 137 pm .Estimate its density,Given that the metal has a close-packed structure.

Accepted Answer

A)  7.47 g.cmS1U1P1-S1S1P0S1U1P13 S1S1P0 
B)  10.2 g.cmS1U1P1-S1S1P0S1U1P13 S1S1P0 
C)  14.0 g.cmS1U1P1-S1S1P0S1U1P13 S1S1P0 
D)  4.49 g.cmS1U1P1-S1S1P0S1U1P13 S1S1P0 
E)  19.2 g.cmS1U1P1-S1S1P0S1U1P13 S1S1P0

Question 17

At what general temperature are interstitial carbides formed?

Accepted Answer

A)  00oC  
B)  200oC  
C)  1,000oC   
D)  2,000oC  
E)  20,000oC

Question 18

A 6.00-L sample of C2H4(g) at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,What is the final volume of all gases at 2.00 atm and 293 K?

Accepted Answer

A)  2.66 L 
B)  6.00 L 
C)  2.00 L 
D)  1.33 L 
E)  4.00 L

Question 19

How do alloys solidify and melt?

Accepted Answer

A)  At precise temperatures. 
B)  Over a range of temperatures. 
C)  At high temperatures. 
D)  At very low temperatures.  
E)  At absolute temperatures.

Question 20

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25$\omicron $C and 1.00 atm?
2Al(s)+6H+(aq)$\rightarrow$2Al3+(aq)+ 3H2(g)

Accepted Answer

A)  20.7 g 
B)  22.6 g 
C)  10.0 g 
D)  13.8 g 
E)  9.19 g

Exam 3: States of Matter

In the rock-salt structure (NaCl), the cations occupy all the octahedral holes.

Silicon carbide, SiC, Is what type of material?

Which of the following cations is likely to be hydrated in compounds?

What is the definition of a ceramic?

Which has the higher boiling point, HCl or HI?

What is the molar volume of a nitrogen gas at -27.0^oC and 1 atm?

Ammonium nitrate can decompose according to the following equation: NH₄NO₃(s) $\rightarrow$ N₂O(g) +2H₂O(g) How many liters of gas are produced by decomposition of 160 g of ammonium nitrate at -25^$\omicron$C and 86.0 kPa?

Calculate the mass of oxygen gas required to occupy a volume of 6.00 L at a pressure of 20.9 kPa and a temperature of 37.0^$\circ$C.

What is the coordination number of cesium in CsCl? The ionic radii of Cs⁺ and Cl^- are 170 and 181 pm, respectively.

Consider the following reaction: 2K₂CO_3(s) + 3O_2(g) $\rarr$ 4KO_2(s) + 2CO_2(g) How many moles of K₂CO₃ are needed to react with 35.0 L of oxygen at STP?

Brass is an example of what kind of metal?

Which of the following can form intermolecular hydrogen bonds?

Metals with a hexagonal close-packed structure have/do not have slip planes and as a result are malleable/brittle.

How many atoms of helium occupy 100.0 mL if the temperature is 100.°C and the pressure is 1.00 × 10^-2 Torr?

Which of the following has the highest boiling point?

The atomic radius of zinc is 137 pm .Estimate its density,Given that the metal has a close-packed structure.

At what general temperature are interstitial carbides formed?

A 6.00-L sample of C₂H₄(g) at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,What is the final volume of all gases at 2.00 atm and 293 K?

How do alloys solidify and melt?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25^$\omicron$C and 1.00 atm? 2Al(s) +6H⁺(aq) $\rightarrow$ 2Al³⁺(aq) + 3H₂(g)

Exam 3: States of Matter

In the rock-salt structure (NaCl), the cations occupy all the octahedral holes.

Silicon carbide, SiC, Is what type of material?

Which of the following cations is likely to be hydrated in compounds?

What is the definition of a ceramic?

Which has the higher boiling point, HCl or HI?

What is the molar volume of a nitrogen gas at -27.0oC and 1 atm?

Ammonium nitrate can decompose according to the following equation: NH4NO3(s) →\rightarrow→ N2O(g) +2H2O(g) How many liters of gas are produced by decomposition of 160 g of ammonium nitrate at -25 ο\omicron ο C and 86.0 kPa?

Calculate the mass of oxygen gas required to occupy a volume of 6.00 L at a pressure of 20.9 kPa and a temperature of 37.0 ∘\circ∘ C.

What is the coordination number of cesium in CsCl? The ionic radii of Cs+ and Cl- are 170 and 181 pm, respectively.

Consider the following reaction: 2K2CO3(s) + 3O2(g) →\rarr→ 4KO2(s) + 2CO2(g) How many moles of K2CO3 are needed to react with 35.0 L of oxygen at STP?

Brass is an example of what kind of metal?

Which of the following can form intermolecular hydrogen bonds?

Metals with a hexagonal close-packed structure have/do not have slip planes and as a result are malleable/brittle.

How many atoms of helium occupy 100.0 mL if the temperature is 100.°C and the pressure is 1.00 × 10-2 Torr?

Which of the following has the highest boiling point?

The atomic radius of zinc is 137 pm .Estimate its density,Given that the metal has a close-packed structure.

At what general temperature are interstitial carbides formed?

A 6.00-L sample of C2H4(g) at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,What is the final volume of all gases at 2.00 atm and 293 K?

How do alloys solidify and melt?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25 ο\omicron ο C and 1.00 atm? 2Al(s) +6H+(aq) →\rightarrow→ 2Al3+(aq) + 3H2(g)

What is the molar volume of a nitrogen gas at -27.0^oC and 1 atm?

Ammonium nitrate can decompose according to the following equation: NH₄NO₃(s) $\rightarrow$ N₂O(g) +2H₂O(g) How many liters of gas are produced by decomposition of 160 g of ammonium nitrate at -25^$\omicron$C and 86.0 kPa?

Calculate the mass of oxygen gas required to occupy a volume of 6.00 L at a pressure of 20.9 kPa and a temperature of 37.0^$\circ$C.

What is the coordination number of cesium in CsCl? The ionic radii of Cs⁺ and Cl^- are 170 and 181 pm, respectively.

Consider the following reaction: 2K₂CO_3(s) + 3O_2(g) $\rarr$ 4KO_2(s) + 2CO_2(g) How many moles of K₂CO₃ are needed to react with 35.0 L of oxygen at STP?

How many atoms of helium occupy 100.0 mL if the temperature is 100.°C and the pressure is 1.00 × 10^-2 Torr?

A 6.00-L sample of C₂H₄(g) at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,What is the final volume of all gases at 2.00 atm and 293 K?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25^$\omicron$C and 1.00 atm? 2Al(s) +6H⁺(aq) $\rightarrow$ 2Al³⁺(aq) + 3H₂(g)