Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

CHEM 111 > FINAL > Flashcards

FINAL Flashcards

1
Q

What is the law of Definite Proportions?

A

the elemental composition of a compound is always the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

1 Picometer is equal to how many centimeters?

A

1x 10^-10 Centimeters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

1 Micrometer is…

A

1x 10^ -6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following is not a physical property of water?

a. It freezes at 0°C (at 1 atm pressure)
b. It boils at 100°C (at 1 atm pressure)
c. It is liquid at room temperature
d. It can be decomposed into oxygen and hydrogen gas
e. These are all physical properties of water

A

d. It can be decomposed into oxygen and hydrogen gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What experiment discovered the charge on an electron?

A

The Millikan oil drop experiment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

132
Xe
54

How many electrons, protons, and neutrons are in this element?

A

54 electrons, 54 protons, 78 neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is not an example of a chemical reaction?

a. Dissolution of a penny in nitric acid
b. The rapid condensation of water vapor
c. Burning a candle
d. The explosive reaction of hydrogen with oxygen, which produces water

A

b. The rapid condensation of water vapor, it is not a chemical reaction.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which one is not an ionic compound?

a. PCl_5
b. MoCl_6
c. RbCl
d. PbCl_2

A

a. PbCl_5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The attractions between oppositely charged ions is what type of bond?

A

Ionic bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Molecules are formed by sharing electrons between atoms is what type of bond?

A

Covalent Bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What would be an isotope of:
39
Cl

36 40
Cl^- or Ar^+?

A

36

Cl^-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

There are how many moles of carbon atoms in 4 moles of dimethylsulfoxide?

(C_2H_6SO)

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the term for a solid going directly to a gas?

A

Sublimation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A substance that completely dissolves in water to form ions is called?

A

A strong electrolyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A neutral carbon atom has…. total electrons

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

An acid that only partially dissociates in water is called a….

A

weak acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Fe^3+ + e^- –> Fe^2+

Is an example of?

A

Reduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q 
The Oxidation number of carbon in CO_3^2-
is:
a. +4
b. +1
c. -2
d. +6
e. 0
A

a. +4

x-6= -2

x=4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does an endothermic reaction do?

A

Absorbs heat from its surroundings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A container where gases cannot leave, but heat can enter and leave is called:

A

a closed system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

In compunds, the oxidation number of metals is usually

A

positive (think Na)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Wo proposed the Law of Octaves?

A

Newlands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The f subshell can hold up to…. electrons

A

14 electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The orbital that has a clover-leaf shape is the:

A

d orbital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Which element would have the smallest atomic radii? a. B b. O c. N d. C e. Li
b. Oxygen
26
The Ca^= ion would have a radius that is....than the Ca atom
smaller; cations have a smaller radii than their parents
27
Enthalpy is denoted by the letter...
H
28
The quantity of heat required to raise the temperature of a sample of matter by 1°C (1K) is called:
the heat capacity
29
In the Bohr model of the atom: a. Electrons travel in circular paths called orbitals b. Electrons can have any energy c. Electrons are quantized d. Electron paths are controlled by probability e. Both B and C
c. Electrons are quantized
30
What is and acceptable value for the magnetic spin quantum number?
+(1/2) OR -(1/2)
31
An orbital that has a spherical shape is the:
s orbital
32
How many valence electrons are there in the element tin?
4
33
How do you find formal charge?
FC= (valence e) -((1/2) bonding e) - (nonbonding e)
34
Avagadro's law was:
V= constant x n
35
The highest electronegitivity of all the elements on the periodic table is:
Fluorine
36
Which of the following is an ionic bond? a. F-F b. O-F c. Cl-F d. S-O e. Cs-F
e. Cs-F
37
To form ions, nonmetals tend to:
Gain electrons
38
Sideways overlap of atomic orbitals is called a.... bond
Pi
39
The bond angle of a molecule with molecular geometry of tetrahedral structure geometry is:
109.5°
40
One of the rules about electrons is that no two electrons in an orbital can have the same:
Spin
41
A double involves the following types of bonds: a. Two sigma bonds b. a sigma and a pi bond c. two pi bonds d. either two sigma or two pi bonds e. a sigma and a delta bond
b. a sigma and a pi bond
42
In an equilibrium recation, a catalyst can:
Speed up the time for the reaction to reach equilibrium
43
What is the conjugate acid of NH_2?
NH_3
44
First order is represented by:
A plot of the ln (concentration) versus time is linear
45
A reaction was found to be second order in oxygen concentration and zero order in hydrogen. The rate of the reaction..... if the [O_2] is doubled, with everything else kept the same.
increases by a factor of 4
46
In the rate law, rate k= [A], the units of the rate constant (k) are:
(1/s)
47
An equilibrium reaction where the reactants and products are all in the same phase is called:
a homogeneous equilibrium
48
When Q
Shift to the right to produce more products
49
How can you produce more products in an endothermic reaction?
decreasing the pressure
50
This has an overall reaction order of: | k[A][B]
2
51
If the pH of a solution is 7 then:
the [H^+] = [OH^-]
52
Acids often taste:
Sour
53
A unimolecular elementary reaction has:
One reactant
54
A conjugate acid-pair differs by the presence or absence of:
a proton (H^+)
55
A Brønsted acid:
Produces H^+ ions in solution
56
A hydrogen bond can form between a hydrogen atom bonded to Oxygen, O-H and a. C b. B c. Cl d. P e. N
e. N
57
A disadvantage of homogeneous catalysts is that they are sometimes.....
hard to separate from the products
58
Viscosity is...
The resistance to flow
59
Which of the following is not a pure substance? a. Argon gas b. Crude oil c. Sodium chloride d. Oxygen gas
b. Crude Oil
60
Which of the following is a physical property? a. Flammability b. Reactivity c. Combustibility d. Boiling point
d. Boiling point
61
The SI unit for length is...
meter
62
The common unit for density that is used is...
g/mL
63
Thomson's plum pudding (i.e. cookie model) was tested in:
Rutherford's gold foil experiment
64
``` Which of the following has ten neutrons? a. 10 B b. 21 Ne c. 40 Ca d. 19 F ```
d. 19 F (Mass #- protons)
65
On the Periodic tabel, which way do the periods go? Up and Down OR Left to Right
Left to right
66
CO_2 is what type of compound?
Molecular
67
H_2SO_4 is called:
Sulfuric acid
68
The alkali metals (Li, Na, K, etc.) usually form which type of ion?
Cation (+)
69
What is one of the key featurees of a combination reaction?
It involves only one product
70
``` Consider: 196 Pt This atom contains 196 electrons (T/F) The atom above has 78 protons (T/F) The atom shown above would be an isotope of Platinum-197 (T/F) This atom is a cation (T/F) ```
F, T, T, F
71
An acid that completely dissociates in water is called:
A strong acid
72
When going across the table from left to right does the atomic size of the radius decrease or increase?
Decrease
73
The internal energy of a system is always increased by....
Adding heat to the system
74
Which is a state function? a. H b. d c. w d. q e. heat
a. H
75
Oxidation cannot occur without...
Reduction
76
The lowest energy state of an atom where the e;ectrons are in the lowest energy levels is called:
the ground state
77
How many total electrons can a p subshell hold?
Six
78
........proposed the law of octaves
Newlands
79
For a given process at constant pressure, delta H is negative. This means the process is
exothermic
80
A container where both material and heat cannot enter or leave is called
An isolated system
81
The d subshell can hold up to....electrons
ten
82
(V/T) = constant is who's law?
Charles
83
One significant difference between gases and liquids is that...
a gas assumes the volume of its container
84
Nonmetals tend to form... charged ions
Negatively
85
Metals are generally found where on the Periodic Table?
Towards the left side of the periodic table
86
With the formula Ab_2, the molecular shape is: a. Linear or bent b. Linear or triagonal planar c. Linear or t-shaped d. Trigonal planar
a. Linear or Bent
87
A double bond consists of.... pairs of electrons shared between two atoms
2
88
The bond angle between any two positions (or atoms) in a tetrahedral structure is:
109.5°
89
According to the VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n)....electron geometry
trigonal planar
90
A dipole moment occure when there is a difference in....in a compound
Electonegativity
91
At equilibrium....
The rates of the forward and reverse reactions are equal
92
The property responsible for water bugs "floating" on the surface of water is:
Surface tension
93
A plot of the ln (concentration) versus time is linear is what order?
First
94
Which interaction can occur between all molecules and atoms?
London-Dispersion force
95
If a plot of one over concentration (1/ [X]) versus time is linear, what order is it?
Second order
96
If you increase the temperature of a reaction, it will produce more products if:
The reaction is endothermic
97
A reaction was found to be second order in hydrogen concentration. The rate of the reaction.... if the [H_2] is doubled, with everything else kept the same.
Increases by a factor of 4
98
In an equilibrium recation a catalyst can:
speed the reaction up to equilibrium
99
An activated complex is also known as a
transition state
100
When the equilibrium constant is written as K_c, the c stands for
concentration
101
When Q
Shift to the right to produce more products
102
To result more products being produced in an exothermic reaction, you must
Increase the pressure
103
Which of the following is a characteristic of acids? a. Bitter b. Slippery c. Soapy d. Sour tasting e. Aromatic
d. Sour tasting
104
The conjgate acid of NH_3 is
NH_4^+
105
The overall reaction oerder of the following rate law ( rate= k[A][B]) is ...
Two
106
If the pH of a solution is 9...then
the [H^+]< [OH^-]
107
In a kinetic rate law, the 'k' is called the
Rate constant
108
For the reaction B=B--> Products, the molecularity of this reaction would be
Bimolecular
109
A Bronsted-Lowry base... does what?
accepts H+ ions from another substance
110
The pH of neutral water is...
7
111
Metals generally (lose/gain) electrons
Lose
112
Nonmetals generally (lose/gain) electrons
Gain
113
1 nanometer (nm)=.....meters
1.0x10^-9 meters
114
Planck's Constant is...
6.63 x10^-34 Jxs
115
Speed of light is...
c= 3.0x10^8 m/s
116
-hCR_h is equal to...
2.18x 10^-18 J

CHEM 111 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions