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HChemistry S1 Review: Vocab Flashcards | StudBud
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HChemistry S1 Review: Vocab
HChemistry S1 Review: Vocab
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OLHS Honors Chemistry Terms
Flashcards
70 cards
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Practice quiz
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Questions
70
Answers
1
Which of the following is a polyatomic ions?
CO2
OH-
NO2
NH3
2
Which is NOT an example of qualitative data?
opaque blue
grainy and rough
there are seven
murky red
3
An element symbol represents an element in 1-2 that all must be capitalized letters.
False
True
4
Resonance usually occurs in molecules with double bonds.
True
False
5
What is a heterogeneous mixture?
evenly distributed
uniform
unclear components
two or more visible components
6
Which could be an example of control in an experiment regarding how plants grow in different liquids?
an experiment with McDonald's Sprite
an experiment with tap water
7
Which sublevel's shape is complicated and often referred to as a lotus flower?
D
P
S
F
8
Which law states the following: energy cannot be created or destroyed but can be changed from one form to another.
Law of Chemical Combination
Law of Conservation of Mass
Law of Conservation of Energy
Boyle's Law
9
What is the EMS?
rainbow
Einstein's Mechanical Spore
magnetic rainbow
electromagnetic spectrum
10
Which of the following are states of matter?
aqueous
gas
liquid
solid
11
CATions are positively charged.
True
False
12
Valence electrons are:
the electrons in the outermost ring/level
the electrons closest to the nucleus
all electrons within an atom
what determines an atom's charge
13
What are the names for things that enter into a chemical reaction?
products
ingredients,
results
reactants
14
The following is an example of what molecule shape?
tetrahedral bended
linear
trigonal planar
tetrahedral bent
15
What is a dependent variable?
point of comparison
a variable that responds to the independent variable
a variable that does not change in response to the independent variable
a way to show data
16
A polar molecule is always symmetrical.
True
False
17
Which law states that matter cannot be created or destroyed?
Aufbau Principle
Heisenberg Uncertainty Principle
Law of Conservation of Energy
Law of Conservation of Mass
18
Quantitative data uses descriptions.
True
False
19
You leave the vents open while lighting a bunsen burner.
False
True
20
Anything that has mass and takes up space is:
matter
fat
mass
mather
21
A molecule is another name for one atom.
True
False
22
Have No Fear Of Ice Cold Beer is a way to remember what?
diatomic molecules
noble gases
polyatomic ions
metalloids
23
Which is an example of a physical change?
burning
Reacting two chemicals
molding
peeling an orange
24
The atomic number shows the number of protons in the nucleus of an atom.
False
True
25
In electron configurations, what shows the SPIN of electrons?
letters
arrows
subscripts
superscripts
26
An example of a crystalline structure is a honeycomb.
True
False
27
Homogeneous mixtures are made up of different things that are visible.
False
True
28
Some characteristics of metals are:
grainy
malleable
conductive
dull
29
What is a polar bond?
any ionic bond
covalent bond with equal pull
ionic bond with unequal pull
a bond with unequal pull by e-
30
VSEPR means Valence Shell Electron Propel repulsion.
False
True
31
Which can be found in the nucleus of an atom?
protons + neutrons
protons + electrons
atomic mass
electrons + neutrons
32
Electron levels are SPDF, and sublevels are 1, 2, 3, 4.
True
False
33
What is the name for a diagram showing paired and unpaired electrons with element symbols?
Planetary Model
PPE
Lewis Dot Structure
electron configurations
34
An x-ray is an example of a wave of energy.
False
True
35
What is a wave?
a disturbance that moves energy from one place to another
energy in the ocean forming into a wave-like shape
something you can surf
magnetic energy that causes repulsion
36
An ion is:
an atom without a charge
an atom with a charge
37
What type of change is when one or more substances change entirely into new substances with different properties?
physical
chemical
38
What types of bonds cause compounds to be formed in a reaction?
ionic bonds only
covalent bonds only
chemical bonds
acidic bonds
39
A packet of energy is called a quantum.
False
True
40
What are atoms of the same element that have different numbers of neutrons called?
elementals
nuclei
isotopes
atomic atoms
41
What is this: Observation: Ask a Question, Hypothesis, Experiment, Conclusion
scientific method
experiment steps
CERR
42
An element is made of multiple types of atoms.
True
False
43
A law is a statement describes behavior of natural world that can be changed (ex. Gravity).
True
False
44
What is the name for a number that indicates how many electrons an atom has gained/lost?
valence number
oxidation number
ionic number
atomic number
45
Ionic bonds share electrons.
True
False
46
The following is an example of what molecular shape?
tetrahedral bent
pyramidal
trigonal planar
linear
47
Acids always contain oxygen.
False
True
48
The electromagnetic spectrum uses ROYGBIV - red being high energy, purple being low.
True
False
49
A theory is a well tested explanation of observations that can be changed. (Ex: evolution)
False
True
50
What is an atom?
the first man
someone you can't trust
Atomic Tonsil Optometrist Mover
the basic unit of a chemical element
51
What is the name for a molecule with an expanded octet?
expanded octet molecule
decahedral
hexahedral
octahedral
52
PPE means:
poor preachers entertain
personal preparation equipment
portable protective equipment
personal protective equipment
53
Mass number is:
the sum of all the electrons in an atom
the number of isotopes an element has
the sum of the number of neutrons and protons in a nucleus
54
A photon is:
a wave of light
something from the Marvel Universe
a particle of light that carries a quantum of energy
a photo of a ton
55
A written form of an arrangement of electrons in an atom is:
SPDF
orbital graph
the thing with arrows
electron configuration
56
The height of a wave's crest is called:
magnitude
amplitude
quanta
altitude
57
Which are required for a covalent bond?
3 metalloids
one non metal and one metal
two nonmetals
sharing of electrons
58
A group is a horizontal row on the Periodic Table.
False
True
59
Which is NOT a standardized variable (for the same plant experiment)?
same type of liquid
same amount of liquid
same amount of sunlight
same container
60
A period is a horizontal row on the Periodic Table.
False
True
61
What is an anion?
an ion with a negative charge
an ion with a positive charge
an ion with an unusually high or low charge
an ion with no charge
62
The following is an example of what molecule shape?
trigonal planar
tetrahedral
linear
tetrahedral bent
63
What is an independent variable?
a point of comparison
something that is consistent throughout all experiments
a factor in an experiment that is manipulated
a factor in an experiment that doesn't change
64
What is a particle that behaves like a wave?
heat
light
air
water
65
What is the weighted average of the known isotopes of an element?
charge
atomic mass
isotope
atomic number
66
A molecule has polarity if it has:
equal pull
no symmetry
freezing temperatures
an expanded octet
67
Which is a way to refer to protons, neutrons, and electrons?
ions
P E N
subatomic particles
plus negative none
68
A nonmetal conducts heat efficiently.
False
True
69
What is a hypothesis?
after experimenting, you go back and change it when you realize it is wrong
correct answer that explains an observation or answers a question
educated guess that attempts to explain an observation or answer a question
an experiment to contradict your original experiment
70
Which are words to describe an element?
metal
substance
uniform
pure
