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