Which of the following includes all states of matter?

Solids, liquids, gasses and plasma

Which of the following correctly identifies the charges of protons, neutrons and electrons?

Protons - positive, Neutrons - lack a charge, Electrons - negative

Which of the following are considered physical properties?

Melting/boiling point, Density, volume, mass, Color

Elements are electrically ________

Neutral (Equal # of protons and electrons)

Which of the following best describes a solid?

Resist changes to shape and volume

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Chem Exam 3 Review 1

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1
The period number of an element corresponds to the number of ___________ for that element
Protons
Electrons
Neutrons
Electron shells
2
________ are what enable anesthetic gasses to be transferred from flammable to non-flammable
Oxidation reactions
Atoms
Extensive sample sizes
Halogens
3
There is NO transfer of electrons in covalent bonds
True
False
4
A group of two or more atoms covalently bonded together that behave as a single unit and have a net charge. Examples?
HCO3-, OH-
Polyatomic ions
NaCl, LiCl
Ionic compound
5
Which of the following best describes a liquid?
May change volume
Resist changes to shape and volume
Mixture of ionized gas and free-floating electrons
Easily change volume
6
Which group of elements are colorless, orderless, and reluctant to combine with other elements to form compounds
Halogens (Group 17, 7A)
Alkali Earth Metals
Alkali Metals
Noble Gasses (Group 18, 8A)
7
Sublimation is the change of a _______ to a _______
Gas to a liquid
Solid to a gas
Liquid to a gas
Liquid to a solid
8
What is atmospheric oxygen/nitrogen %?
O2 - 21%, N2 - 78%
O2 - 78%, N2 - 21%
O2 - 50%, N2 - 50%
O2 - 20%, N2 - 80%
9
Which side of the periodic table is more electronegative
Right
Middle
Left
10
Intermolecular forces are determines by chemical bonding
True
False
11
Atomic mass # - atomic # =
Protons
Neutrons
Electrons
Atoms
12
Compounds are composed more than one kind of atom in a fixed ratio by mass
False
True
13
Physics is a field of study that describes the motion, mechanics, force, and energy of matter
False
True
14
Some elements exists in nature as _______ (2 or more bonded atoms)
Molecules
Compounds
Elements
Electrons
15
Vaporization is the change of a ________ to a _______
Solid to a liquid
Liquid to a solid
Gas to a liquid
Liquid to a gas
16
How many electrons can the 1st shell hold (s)?
6
2
8
1
17
A dipole molecule has an area that is positively charged and an area that is negatively charged
True
False
18
Identify the compounds
He, Ca, Mg
H2O, N2O, NaCl
N2, O2, H2
19
Select the cations below
H+
Ca2+
K+
Cl-
20
_________ bonding involves the sharing of electrons between two or more atoms
Covalent
Ionic
21
How many orbitals does the p subshell have?
1
3
10
5
22
Which of the following includes all states of matter?
Solids, liquids, gasses and plasma
Solids, liquids, and gasses
Liquids and gasses
Solids and liquids
23
Hydrogen bonding is possible when a hydrogen atom is directly bonded to which of the following?
N
C
F
O
24
Hydrogen bonding is stronger than dipole-dipole bonding
False
True
25
Which of the following correctly identifies the charges of protons, neutrons and electrons?
Protons - negative, Neutrons - lack a charge, Electrons - positive
Protons - positive, Neutrons - lack a charge, Electrons - negative
Protons - negative, Neutrons - positive, Electrons - lack a charge
Protons - postivie, Neutrons - negative, Electrons - lack a charge
26
Which of the following intermolecular bonding is the second strongest?
London Force
Covalent
Hydorgen
Electrostatic
27
Covalent bonds are typically between ________ and ________
Metals & Nonmetals
Metals & Metals
None of the above
Nonmetals & Nonmetals
28
In order to form a compound, atoms of differing elements are combined by?
Covalent bonds
Atomic numbers
Electrons
Chemical reactions
29
An anion has a ______ charge and has _______ electron(s)
Lost
Negative
Positive
Gained
30
When halogenated, flammability is eliminated but toxicity increases
True
False
31
Ionic bonds are typically between ________ and ________
Metals & Nonmetals
Metals & Metals
None of the above
Nonmetals & Nonmetals
32
Condensation is the change of a ______ to a _______
Gas to a liquid
Liquid to a solid
Solid to a liquid
Liquid to a gas
33
A substance can be both a molecule and an element
False
True
34
The further away you are from the nucleus, the higher the energy level
False
True
35
Which of the following are considered physical properties?
Flammability
Melting/boiling point
Density, volume, mass
Color
36
How many orbitals does the s subshell have?
2
1
10
6
37
Nonpolar covalent bonds share electrons equally while polar covalent bonds share electrons unequally
True
False
38
Identify the molecules
H2O, N2O, NaCl
He, Ca, Mg
N2, O2, H2
39
________ bonds are formed when electrons are transfered and the ions are held together by charge differences
Ionic
Covalent
40
Elements are electrically ________
Neutral (Equal # of protons and electrons)
Neutral (Equal # of protons and neutrons)
Negative
Positive
41
Which of the following best describes a gas?
Mixture of ionized gas and free-floating electrons
May change volume
Easily change volume
Resist changes to shape and volume
42
Which of the following best describes a solid?
Easily change volume
Resist changes to shape and volume
May change volume
Mixture of ionized gas and free-floating electrons
43
All molecules are NOT compounds, but all compounds are molecules
False
True
44
Intensive physical properties are integral to the material regardless of sample size where extensive depends on size
False
True
45
Nuclei and electrons have angular momentum knowns as _______
Motion
Curvature
Spin
Speed
46
How many orbitals does the d subshell have?
5
3
1
10
47
The spin of an electron or proton is directly measurable
True
False
48
Identify the elements
He, Ca, Mg
H2O, N2O, NaCl
N2, O2, H2
49
Although isotopes are the same element, the different numbers of neutrons effects what?
Elements
Mass number
Electrons
Protons
50
Metals _______ 1-2 electrons to achieve a noble gas-like electron configuration to form a(n) ________
gain
cation
anion
give up
51
The atomic mass number is equal to the number of _______ in an atom?
Protons and Neutrons
Electrons
Protons
Protons and Electrons
52
Electrons do NOT need to fill lower shells prior to filling the higher energy level/outer shells
True
False
53
The spin of an electron and proton causes an uneven distribution of charge that can be measured
False
True
54
Ions are atoms that have gained or lost electrons from their natural composition
False
True
55
A pure substance which consists of a single type of atom is known as?
Proton
Compound
Molecule
Element
56
Mass # can be smaller than atomic number
False
True
57
Chemistry is the study of composition, properties, and structure of matter at the atomic and molecular levels
False
True
58
If an electron configuration with 8 valoence electrons is chemically inert (not chemically reactive)
False
True
59
Metals are found on which side of the table?
Left
Middle
Right
60
Which of the following are considered chemical properties?
Radioactivity
Oxidation
Toxicity
Volume
61
Which of the following is NOT a form of electrostatic bonding?
Covalent
Ion-Dipole
Ion-Ion
Dipole-Dipole
62
What is the smallest unit of matter that retains all of the chemical properties of an element?
Proton
Neutron
Electron
Atom
63
Common elements of living organisms include?
O, CO2
O, CO2, H2O
O, C, H, N
K, Na, Ca
64
Each electron shell is also labeled with the following letters
A, B, C, D,
W, X, Y, Z
K, L, M, N
P, Q, R, S
65
Which of the following orbit the nucleus of an atom?
Electrons
All of the above
Protons
Neutrons
66
The automic number is the number of neutrons within the nucleus
True
False
67
The number of _______ in an atom constitutes its atomic number and uniquely identifies the atom as a chemical element
Electrons
Atoms
Protons
Neutrons
68
Valence electrons are found on the _______ shell with the ______ energy
Lowest
Outermost
Innermost
Highest
69
A cation has a ______ charge and has _______ electron(s)
Lost
Positive
Negative
Gained
70
Which of the following best describes plasma?
Easily change volume
Mixture of ionized gas and free-floating electrons
Resist changes to shape and volume
May change volume
71
Which area of the periodic table satisfies the octet rule?
Halogens
Nobel gasses
Nobel metals
Alkali metals
72
The nucelus of an atom contains which of the following?
Protons and Electrons
Protons, Neutrons and Electrons
Protons and Neutrons
Neutrons and Electrons
73
Which of the following describes an atom or group of atoms bonded together that have a net electrical charge?
Ion
Element
Compound
Molecule
74
Gasses are fluids
True
False
75
The ____ group on the periodic table tell us the # of valence electrons in the outer shell
A
B
D
C
76
Vertical columns are called groups while horizontal rows are called periods
True
False
77
Compounds that are comprised of cations and anions bonded together resulting in no net charge
NaCl, LiCl
Polyatomic ions
HCO3-, OH-
Ionic compounds
78
Select the anions below
Ca2+
Cl-
I-
K+
79
Which of the following Law's does Dalton include in his theory?
Law of Definite Proportions
Columb's Law
Law of Conservation of Mass
Law of Multiple Proportions
80
Atomic mass # =
Protons + Electrons
Protons + Neutrons
Protons - Neutrons
Protons - Electrons
81
Ionic compounds have no net charge
True
False
82
When preoxygenating your patient you are trying to denitrogenate their lungs
False
True
83
What is the strongest electrostatic bond?
Ion-Ion
Ion-Dipole
Dipole-Dipole
Covalent
84
H2O is an example of a dipole. If forming an ion-dipole bond, where would Na+ attach?
To the oxygen
To the hydrogen
None of the above
85
Deposition is the change of a _______ to a _______
Gas to a liquid
Gas to a solid
Liquid to a gas
Solid to a gas
86
Compounds contain a single kind of atom while molecules are composed of two or more bonded atoms
False
True
87
Molecules with ionic bonds have low melting and boiling points
False
True
88
Non-metals _______ 1-2 electrons to achieve a noble gas-like electron configuration to form a(n) ________
give up
gain
cation
anion
89
Select all that apply to Dalton's Atomic Theory
Elements are composed of tiny, invisible particles called atoms
All atoms of a given element are identical and unique
Chemical reactions do not create or destory atoms, instead they recombine
Compounds are formed by bonding atoms together in a fixed ratio by mass
90
An Ion-Ion bond is _________ and results from the attraction between ________ charged ions
Non-directional
Oppositely
Unidirectional
Similarly
91
Polyatomic ions have no net charge
True
False
92
How many electrons can the 3rd shell hold (s, p, d)?
8
6
10
18
93
How many electrons can the 2nd shell hold (s, p)?
8
2
10
6
94
Non-metals are found on which side of the table?
Middle
Right
Left
95
Electront shells are divided into subshells with the designations s, p, d, f and g. How many electrons can they hold?
2, 6, 10, 14, 18
2, 6, 12, 16, 18
2, 4, 6, 8, 10
2, 8, 12, 16, 20
96
The dipolar nature of H2O molecules enables formation of ______ bonds with one another
Strong
Unbreakable
No
Weak
97
The number of valence electrons drives a chemical bond between atoms
True
False
98
H2O has dipole-dipole bonding but no hydrogen bonding
False
True
99
A cation has a negative charge while an anion has a positive charge
False
True
100
Isotopes have the same number of __(a)__ but different number of __(b)__
(a) Neutrons
(b) Protons
(a) Protons
(b) Neutrons

Chem Exam 3 Review 1 Flashcards | StudBud