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Chemistry Final Review
Chemistry Final Review
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Honors Chemistry final exam review
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
The diameter of a carbon atom is 0.000000000154 m. In scientific notation it would be....
1.54x10^-10m
1.54x10^10m
1.54x10^-12m
1.54x10^12m
2
Which of the following is NOT true about ions?
when a cation forms more electrons are transferred to it.
Anions are common among nonmetals
Charges for ions are written as numbers and + or - sign
Cations are pos charged ions
3
What are the weakest attractions between molecules?
covalent forces
Van der Waals forces
hydrogen forces
ionic forces
4
What is the volume of 45.6 g of silver if the density of silver is 10.5 g/mL?
0.23mL
479 mL
4.79 ml
4.43mL
5
Which of the following can be observed only in a microscopic view?
structure of a muscle cell
foam inslation
x-ray of knee joint
shape of a soybean plant
6
Which of the following is a binary molecular compound?
MgS
BeHCO3
Agl
PCl5
7
The particles that are found in the nucleus of an atom are
protons and electrons
neutrons and electrons
electrons only
protons and neutrons
8
Which of the following is NOT a part of Dalton's atomic theory?
atoms are always in motion
atoms of the same element are identical
atoms that combine do so in simple whole number ratios
All elements are composed of atoms
9
Which of the following best describes an example of pure chemistry?
studying chemicals containing carbon
finding an antidote for a new strain of virus
testing effects of a drug on humans
developing a cure for osteoporosis
10
Elements that are characterized by the filling of p orbitals are classified as
groups 3A thru 8A
inner transition metals
groups 1A and 2A
transition metals
11
Which of the following elements has the smallest ionic radius?
Li
K
O
S
12
The variable that is observed during an experiment is called what type of variable?
controlling
independent
responding
manipulated
13
What is the number of moles in 500 L of He gas at STP?
0.2 mol
0.05 mol
22 mol
90 mol
14
What is the maximum number of d orbitals in a principal energy level
5
2
1
3
15
Heisenberg Uncert Prin: Position of a moving particle is known, what quantity CANNOT be known?
mass
velocity
charge
spin
16
The sum of the protons and neutrons in an atom equals the
mass number
atomic mass
atomic number
nucleus number
17
What is the formula for sodium sulfate?
NaSO4
Na2(SO4)2
Na(SO4)2
<span style="font-size: 13.3333px;">Na2SO4</span>
18
Which of the following is true about single-replacement reactions?
Two reactants produce two products
They involve a single product
They are restricted to metals
Any metal replaces any other metal
19
What is the correct name for CoCl
2
?
cobalt(ll) chloride
cobalt(ll) chlorate
cobalt(l) chlorate
cobalt(l) chloride
20
How does atomic radius change from top to bottom in a group in the periodic table?
It first decreases then increases
It tends to increase
It first increases then decreases
It tends to decrease
21
What is one difference between a mixture and a compound?
compound can only be sep into is components by chemicals
A mixture must be uniform in composition.
mixture can only be sep into its components by chemical
A compound consists of more than one phase.
22
All of the following are physical properties of a substance in the liquid state EXCEPT
indefinite volume
indefinite shape
definite mass
not easily compressed
23
How many valence electrons are in a silicon atom?
4
8
6
2
24
The shape of the methane molecule is called
tetrahedral
four-cornered
square
planar
25
Which of the following are considered physical properties of a substance?
malleability and hardness
color and odor
melting/boiling pts
all of these
