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Chemistry - Kautz > Final Exam 2017 > Flashcards

Final Exam 2017 Flashcards

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1
Q

According to kinetic theory what three things are true

A

All collision between particles of gas are perfectly elastic
There is no attraction between particles of a gas
The particles of a gas collide with each other and with other objects

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2
Q

How many grams are in 6.50 moles of H2SO4?

A

0.0663 g

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3
Q

How many grams of CuSo4 are in 1 L of a 4.0 M solution?

A

638.8 g

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4
Q

How many molecules are in 4.50 moles of H2O?

A

2.71 X 10(24) molecules

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5
Q

If a liquid has limited solubility in another liquid it is said to be???

A

Miscible

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6
Q

If a sample of oxygen occupies a volume of 2.15 L at a pressure of 58.0 kPa and a temperature of 25 Celsius, what volume would this sample occupy at 101.3 kPa and 0 celsius?

A

1.13 l

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7
Q

In the reaction Co3(2-) + H2O -> HCO2 + HO- what is the carbonate ion acting as?

A

Bronstead-Lowry Base

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8
Q

Know what the molecular geometry of an Octahedral looks like.

A

See Mrs. K for help

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9
Q

Metals will become cations because they have what?

A

Low ionization energy

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10
Q

Nonmetals will become anions because they have what?

A

High Electronegativity

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11
Q

The temperature of -25* C is equivalent to ??????

A

248K

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12
Q

What are ionic solids?

A

Insulators

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13
Q

What can be said about the average kinetic energy of particles of a substance?

A

It is directly proportional to the temperature of a substance

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14
Q

What charge will Se (Selenium) assume when ionized?

A

2-

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15
Q

What does water do according to the Bronstead-Lowry theory?

A

It acts as a base when it accepts a hydrogen ion

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16
Q

What happens to particles in a gas according to kinetic theory?

A

They move rapidly
They are relatively far apart
They move independently of each other

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17
Q

What happens to pressure when you reduce the volume of a contained gas by one third - while holding the temperature constant?

A

Pressure will be increased by one third

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18
Q

What is a solution that contains more than a maximum amount of absolute that can be dissolved at equilibrium conditions at a given temperature?

A

A Supersaturated Solution

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19
Q

What is any property of a solution that depends on the number of solute particles and not on the nature of the particles?

A

Boiling Point Elevation

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20
Q

What is attractive forces in which a sad roger covalently bonded to a very electronegative atom is also weakly bonded to an unshared electron pair of another electronegative atom?

A

Hydrogen Bonding

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21
Q

What is the alloy name for a mixture of copper and zinc?

A

Brass

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22
Q

What is the direct change of a substance from a solid to a vapor called?

A

Sublimation

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23
Q

What is the escape of molecules from the surface of an unconfined liquid?

A

Evaporation

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24
Q

What is the inward force or pull that tends to minimize the surface area of a liquid called?

A

Surface Tension

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25
What is the molar its of a solution contains 780 mg of sodium sulfate in 180.3 mL of water?
4.32 M
26
What is the molar its of a solution of 6.90 g of H2SO4 in 3.4L of water?
0.02M
27
What is the molar mass of C3H8?
44.0g/mol
28
What is the name of this compound: Fe (NO3)2*3H2O
Iron (II) Nitrate Trihydrate
29
What is the new volume of gas when the temperature of 6.24L of gas is increased from 25*C to 55*C at a constant pressure?
6.87L
30
What is the percent of aluminum in Al2(SO4)3?
15.8%
31
What is the pH of a solution in which {OH-} = 1.0 X 10-2?
9.0
32
What is the temperature at which the motion of particles theoretically ceases?
0K
33
What is the term for a heterogeneous mixture containing particles that range in size fro 1nm to 1000nm?
Colloid
34
What is the term for a substance that conducts electric current when dissolved in solution?
Electrolyte
35
What is the term for adding in a substance in order to increase the point at which a liquid changes into a vapor?
Boiling Point Elevation
36
What is the volume (in L) that would be occupied by 5.00 mol of O2 at STP?
112 L
37
What is the volume in liters of 3.75 moles of O2 gas at STP?
84.0
38
What occurs when there is an increase in the temperature of a contained liquid?
It causes the vapor pressure above the liquid to increase
39
What type of molecular geometry does Ammonia have?
Trigonal Pyramid See Mrs. K
40
What type of reaction is the following? 2AlBr3 -> 2Al + 3Br2
Decomposition
41
What type of reaction is the following? 2C4H10 + 13O2 - - > 10H2O + 8CO2
Combustion
42
What type of reaction is the following? 3Mg + 2Ag3PO4 -> 6Ag + Mg3(PO4)2
Single replacement
43
What type of reaction is the following? C3H8 + 5O2 -> 3CO2 + 4H2O
Combustion
44
What type of reaction is the following? H2 + S -> H2S
Synthesis
45
What type of reaction is the following? K2O + 2CuNO3 -> 2KNO3 +Cu2O
Double replacement
46
What type of reaction is the following? Na + P -> Na3P
Synthesis
47
What type of reaction is the following? Sodium hydroxide + barium nitrate -> sodium nitrate + barium hydroxide
Double replacement
48
What type of reaction is the following? Solid aluminum metal reactions with aqueous copper (ll) sulfate to yield solid copper metal and aqueous aluminum sulfate
Single replacement
49
What type of reaction is the following? U + O2 -> UO2
Synthesis
50
What type of solution has a pH of 8.9?
Base
51
What will the following reaction produce? Ag + Pt(NO3)4 - - > Pt +AgNO3 Pt + Ag + NO3
Pt + AgNO3
52
What will the following reaction produce? AlCl3 - - > Al + Cl3 Al + Cl2
Al + Cl2
53
What will the following reaction produce? Ba + P Ba2P Ba3P2
Ba3P2
54
What will the following reaction produce? C12 H26 + O2 - - > C + H2 + O2 CO2 + H2O
CO2 + H2O
55
What will the following reaction produce? H2O - - > H2O + O2 H2 + O2
H2 + O2
56
What will the following reaction produce? K3PO4 (aq) +Na2SO4 (aq) - - > No reaction Na3PO4 (aq) + K2SO4 (s)
No reaction
57
What will the following reaction produce? Methane (CH4) + oxygen gas - - > H2O + CO2 OH2 + CO2
H2O + CO2
58
What will the following reaction produce? Mg + Cl2 - - - > Mg2Cl2 MgCl2
MgCl2
59
What will the following reaction produce? Mg + Na OH - - > MgNaOH No reaction
No reaction
60
What will the following reaction produce? NaCl (aq) + AgNO3 (aq) - - > No reaction NaNO3 (aq) + AgCl (s)
NaNO3 (aq) + AgCl (s)
61
What would the graph looks like of several pressure-volume readings on a contained gas at constant temperature?
A curved line
62
When an acid and base react - - what is produced?
Water and salt
63
Which acids is monoprotic? H2CO3 CH3COOH H3PO4
CH3COOH
64
Which is a weak acid? ``` Nitric Acid (HNO3) Acetic Acid (HC2H3O2) ```
Acetic Acid (HC2H3O2)
65
Which of the following contains a non-polar covalent bond? HBr N2 NaCl HCl
N2
66
Which of the following elements would NOT participate in ionic bonding? Oxygen Sulfur Sodium Carbon
Carbon
67
Which of the following is a decomposition reaction? 2AlCl3 + 9O2 -> 2Al(ClO3)3 MgBr2 +F2 -> MgF2 + Br2 Na2CO3 - >Na2O +Co2 2CH3OH +O2 -> CO2 + 2H2O
Na2CO3 - >Na2O +Co2
68
Which of the following is a diatomic element? Sulfur Carbon Fluorine Phosphorus
Fluorine
69
Which of the following is an example of combustion reaction? 2AlCl3 + 9O2 -> 2Al(ClO3)3 MgBr2 +F2 -> MgF2 + Br2 Na2CO3 - >Na2O +Co2 2CH3OH +O2 -> CO2 + 2H2O
2CH3OH +O2 -> CO2 + 2H2O
70
Which of the following is an example of single replacement reactions? 2AlCl3 + 9O2 -> 2Al(ClO3)3 MgBr2 +F2 -> MgF2 + Br2 Na2CO3 - >Na2O +Co2
MgBr2 +F2 -> MgF2 + Br2
71
Which of the following is an example of synthesis reaction? 2AlCl3 + 9O2 -> 2Al(ClO3)3 MgBr2 +F2 -> MgF2 + Br2 Na2CO3 - >Na2O +Co2 2CH3OH +O2 -> CO2 + 2H2O
2AlCl3 + 9O2 -> 2Al(ClO3)3
72
Which of the following is the orient formula for aluminum carbonate?
Al2(CO3)3
73
Which of the following molecules will have a linear shape? CCl4 CO2 CH2Cl2 SF6
CH2Cl2
74
Which of the following molecules will have a linear shape? CO2 SF6 CH4 H2O
CO2
75
Which of the following pair would be an interstitial alloy? Ni and Cu Cr and Au At and Cd
Cr and Au
76
Which of the following pairs would be a substitutional alloy? Ni and Pt Zr And Au Cr and Au Ni and Cu
Ni and Cu
77
Which two elements make up sterling silver? Ag and Pt Ag and Cu Ag and Cr Ag and Au
Ag and Cu

Chemistry - Kautz (16 decks)

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