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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
Q

What is the molar its of a solution contains 780 mg of sodium sulfate in 180.3 mL of water?

A

4.32 M

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26
Q

What is the molar its of a solution of 6.90 g of H2SO4 in 3.4L of water?

A

0.02M

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27
Q

What is the molar mass of C3H8?

A

44.0g/mol

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28
Q

What is the name of this compound:

Fe (NO3)2*3H2O

A

Iron (II) Nitrate Trihydrate

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29
Q

What is the new volume of gas when the temperature of 6.24L of gas is increased from 25C to 55C at a constant pressure?

A

6.87L

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30
Q

What is the percent of aluminum in Al2(SO4)3?

A

15.8%

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31
Q

What is the pH of a solution in which {OH-} = 1.0 X 10-2?

A

9.0

32
Q

What is the temperature at which the motion of particles theoretically ceases?

A

0K

33
Q

What is the term for a heterogeneous mixture containing particles that range in size fro 1nm to 1000nm?

A

Colloid

34
Q

What is the term for a substance that conducts electric current when dissolved in solution?

A

Electrolyte

35
Q

What is the term for adding in a substance in order to increase the point at which a liquid changes into a vapor?

A

Boiling Point Elevation

36
Q

What is the volume (in L) that would be occupied by 5.00 mol of O2 at STP?

A

112 L

37
Q

What is the volume in liters of 3.75 moles of O2 gas at STP?

A

84.0

38
Q

What occurs when there is an increase in the temperature of a contained liquid?

A

It causes the vapor pressure above the liquid to increase

39
Q

What type of molecular geometry does Ammonia have?

A

Trigonal Pyramid

See Mrs. K

40
Q

What type of reaction is the following?

2AlBr3 -> 2Al + 3Br2

A

Decomposition

41
Q

What type of reaction is the following?

2C4H10 + 13O2 - - > 10H2O + 8CO2

A

Combustion

42
Q

What type of reaction is the following?

3Mg + 2Ag3PO4 -> 6Ag + Mg3(PO4)2

A

Single replacement

43
Q

What type of reaction is the following?

C3H8 + 5O2 -> 3CO2 + 4H2O

A

Combustion

44
Q

What type of reaction is the following?

H2 + S -> H2S

A

Synthesis

45
Q

What type of reaction is the following?

K2O + 2CuNO3 -> 2KNO3 +Cu2O

A

Double replacement

46
Q

What type of reaction is the following?

Na + P -> Na3P

A

Synthesis

47
Q

What type of reaction is the following?

Sodium hydroxide + barium nitrate -> sodium nitrate + barium hydroxide

A

Double replacement

48
Q

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

A

Single replacement

49
Q

What type of reaction is the following?

U + O2 -> UO2

A

Synthesis

50
Q

What type of solution has a pH of 8.9?

A

Base

51
Q

What will the following reaction produce?

Ag + Pt(NO3)4 - - >

Pt +AgNO3
Pt + Ag + NO3

A

Pt + AgNO3

52
Q

What will the following reaction produce?

AlCl3 - - >

Al + Cl3
Al + Cl2

A

Al + Cl2

53
Q

What will the following reaction produce?

Ba + P

Ba2P
Ba3P2

A

Ba3P2

54
Q

What will the following reaction produce?

C12 H26 + O2 - - >

C + H2 + O2
CO2 + H2O

A

CO2 + H2O

55
Q

What will the following reaction produce?

H2O - - >

H2O + O2
H2 + O2

A

H2 + O2

56
Q

What will the following reaction produce?

K3PO4 (aq) +Na2SO4 (aq) - - >

No reaction
Na3PO4 (aq) + K2SO4 (s)

A

No reaction

57
Q

What will the following reaction produce?

Methane (CH4) + oxygen gas - - >

H2O + CO2
OH2 + CO2

A

H2O + CO2

58
Q

What will the following reaction produce?

Mg + Cl2 - - - >

Mg2Cl2
MgCl2

A

MgCl2

59
Q

What will the following reaction produce?

Mg + Na OH - - >

MgNaOH
No reaction

A

No reaction

60
Q

What will the following reaction produce?

NaCl (aq) + AgNO3 (aq) - - >

No reaction
NaNO3 (aq) + AgCl (s)

A

NaNO3 (aq) + AgCl (s)

61
Q

What would the graph looks like of several pressure-volume readings on a contained gas at constant temperature?

A

A curved line

62
Q

When an acid and base react - - what is produced?

A

Water and salt

63
Q

Which acids is monoprotic?

H2CO3
CH3COOH
H3PO4

A

CH3COOH

64
Q

Which is a weak acid?

Nitric Acid (HNO3)
Acetic Acid (HC2H3O2)
A

Acetic Acid (HC2H3O2)

65
Q

Which of the following contains a non-polar covalent bond?

HBr
N2
NaCl
HCl

A

N2

66
Q

Which of the following elements would NOT participate in ionic bonding?

Oxygen
Sulfur
Sodium
Carbon

A

Carbon

67
Q

Which of the following is a decomposition reaction?

2AlCl3 + 9O2 -> 2Al(ClO3)3
MgBr2 +F2 -> MgF2 + Br2
Na2CO3 - >Na2O +Co2
2CH3OH +O2 -> CO2 + 2H2O

A

Na2CO3 - >Na2O +Co2

68
Q

Which of the following is a diatomic element?

Sulfur
Carbon
Fluorine
Phosphorus

A

Fluorine

69
Q

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

A

2CH3OH +O2 -> CO2 + 2H2O

70
Q

Which of the following is an example of single replacement reactions?

2AlCl3 + 9O2 -> 2Al(ClO3)3
MgBr2 +F2 -> MgF2 + Br2
Na2CO3 - >Na2O +Co2

A

MgBr2 +F2 -> MgF2 + Br2

71
Q

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

A

2AlCl3 + 9O2 -> 2Al(ClO3)3

72
Q

Which of the following is the orient formula for aluminum carbonate?

A

Al2(CO3)3

73
Q

Which of the following molecules will have a linear shape?

CCl4
CO2
CH2Cl2
SF6

A

CH2Cl2

74
Q

Which of the following molecules will have a linear shape?

CO2
SF6
CH4
H2O

A

CO2

75
Q

Which of the following pair would be an interstitial alloy?

Ni and Cu
Cr and Au
At and Cd

A

Cr and Au

76
Q

Which of the following pairs would be a substitutional alloy?

Ni and Pt
Zr And Au
Cr and Au
Ni and Cu

A

Ni and Cu

77
Q

Which two elements make up sterling silver?

Ag and Pt
Ag and Cu
Ag and Cr
Ag and Au

A

Ag and Cu

Chemistry - Kautz (16 decks)

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