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Physical Science Chemistry Final Exam Review Flashcards | StudBud
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Physical Science Chemistry Final Exam Review
Physical Science Chemistry Final Exam Review
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9th grade physical science chemistry final exam review #physicalscience #chemistry
Flashcards
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Questions
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Answers
1
The volume of a liquid is measured in...
m
kg
L
cm3
2
Three subatomic particles are...
nucleus, energy levels, orbitals
groups, periods, families
protons, neutrons, electrons
carbon, oxygen, hydrogen
3
The hypothesis in the scientific method starts with what word(s)?
Why?
Say what?
How?
If...,then...
4
When matter changes from a solid to a gas it is called...
condensation
sublimation
subordination
evaporation
5
When matter changes from a liquid to a gas it is called...
sublimation
evaporation
melting
condensation
6
15km = ______ cm
1,500,000cm
1,500cm
0.0000015cm
1.5cm
7
Which one is an example of a physical change?
turning on a car engine
buying a car
washing a car
getting in a wreck
8
Which is true about neutrons?
always equals number of protons
equals atomic mass minus protons
equals protons plus electrons
never equals the number of protons
9
The correct name for H
2
O
2
is...
dihydrogen dioxide
dihydrogen monooxide
hydrogen oxide
hydrogen IV dioxide
10
Which is a sign of a chemical change?
gas bubbles
sudden color change
evaporating
tearing
11
What type of graph would I use to show plant growth over a week?
line
circle
bar
growth chart
12
What type of reaction is this HCl + NaO -> HO + NaCl?
decomposition
synthesis
double displacement
single displacement
13
Who is going to do awesome on their chemistry final?
hairy arms Tyler
minions
everybody
the people who study
14
Which is
not
true about covalent bonds?
between non-metals and non-metals
uses prefixes to name compounds
criss cross to find out subscripts
shares electrons
15
Which one is an accurate description of a gas?
no definite volume, definite shape
definite shape, no definite volume
definite shape, definite volume
no definite volume, no definite shape
16
To build atomic bonds, scientist utilize...
fusion
fission
17
If I want to compare favorite pets among a group of people, I would use a _____ graph.
pie
bar
photo
line
18
Which statement is true?
carbon's atomic number is 12
carbon has 6 valence electrons
carbon has 7 electrons
carbon has 6 protons
19
In an experiment measuring plant growth over a week, the growth of the plant is what variable?
dependent
independent
20
A pH of 2 indicates a ______ .
weak base
strong base
weak acid
strong acid
21
Which number is the superscript in 2Al
+3
Cl
5
?
5
2
7
3
22
Which one is
not
true about the kinetic theory of matter?
the higher the temperature, the faster the particle moves
all matter is made of atoms
atoms are in constant motion
molecules are made of different elements
23
______ creates bigger nuclei.
fission
fusion
24
600cm = _____ m
0.06m
6m
60m
0.6m
25
What is the volume? density = 100g/cm3 and mass = 500kg?
15 cm3
5 cm3
50 cm3
5000 cm3
26
Alkenes are sporting what kind of covalent bond?
2 electrons
double bonds
single bonds
3 electrons
27
All of the following changes in state require energy except _____.
melting
freezing
boiling
evaporating
28
Which one is
not
a way to separate a mixture?
Magnet
Burning
Filtration
Evaporation
29
Heterogeneous or Homogeneous mixture?
heterogeneous
homogeneous
30
Exothermic reactions...
require energy
release energy
create energy
destroy energy
31
Halogens ...
are transition metals
have 7 energy shells
have 7 valence electrons
are in group 18
32
You should measure the mass of a book using...
cm3
km
kg
mL
33
Which one is an accurate description of a solid?
definite volume, definite shape
no definite shape, no definite volume
definite shape, no definite volume
no definite shape, definite volume
34
The first step in the scientific method is...
Make an observation
Think about something
State a conclusion
Repeat an experiment
35
Lewis dot structures show...
valence electrons
all electrons
as many pretty little circles you like
energy shells
36
Heterogeneous or homogeneous?
homogeneous
heterogeneous
37
The length of a car is about...
5mm
5km
5cm
5m
38
The dependent variable is found on the ___ axis.
z
x
a
y
39
Heterogeneous or homogeneous?
heterogeneous
homogeneous
40
A pH of 7 means...
the substance is a soap
the substance is neutral
the substance is corrosive
the substance can harm skin
41
Which is an
not
example of a physical change?
tearing
smashing
burning
crushing
42
Which is
not
an example of a physical property?
flammability
boiling point
odor
density
43
A coffee pot is an example of
evaporation
filtration
condensation
sublimation
44
A pH of 9 indicates a ______ .
weak base
strong acid
strong base
weak acid
45
Atoms bond with other atoms because
they want to have 8 electrons in outer shell
they want to have 8 electrons in inner shell
they want the most electrons
the want the most protons
46
The particles in which state of matter move the fastest?
liquid
solid
gas
plasma
47
There are ___ periods on the periodic table.
12
8
18
7
48
Endothermic reactions...
release energy
utilize fusion
have more energy in reactants than in product
are the same as exothermic reactions
49
How much time should I spend studying for this test?
not at all
at least an hour
5 minutes
until I know all the material
50
The particles in a liquid...
don't move
vibrate in place
slide by each other
move faster than gases
51
What is the density if mass = 10g and volume =2cm
3
?
5 g/cm3
$5
2 g/cm3
20 g/cm3
52
How many molecules in 2Al
3
N
4
O
3
?
10
20
2
11
53
A pH of 13 is...
neutral
weak acid
weak base
strong base
54
The red elements are...
metals
metalloidss
non-metals
semi-metals
55
The correct name for AlCl
3
is...
monoaluminum trichloride
aluminum chloride
aluminum III chloride
aluminum trichloride
56
Transition metals...
all have 3 valence electrons
form negative ions
are dull
form ionic bonds with non-metals
57
These elements are known as...
non-metals
metalloids
metals
semi-metals
58
Which is
not
true about protons?
always same as number of neutrons
always a positive charge
always bigger than electrons
always same as the atomic number
59
What type of reaction is H + Cl -> HCl?
single displacement
double displacement
synthesis
combustion
60
The blue elements are...
metals
non-metals
semi-metals
metalloids
61
Alkali metals...
have 3 valence electrons
bond with noble gases
are extremely reactive
are in group 2
62
Which graph gives info in percents?
pie
line
bar
x axis
63
Which is
not
true about electrons?
orbits around the nucleus
determines an elements reactivity
negative charge
largest sub atomic particle
64
A centrifuge separates a mixture by....
spinning, making the larger particles sink
bouncing, making the particles split
twisting, shaking particles apart
heating, cooking the particles
65
What is the mass for a cube? length = 2cm and density = 10 g/cm3
200g
80g
800g
20g
66
Which is an example of a chemical change?
digesting cereal
pouring milk in cereal
picking out my favorite cereal
removing blueberries from cereal
67
Which of the following changes in state of matter release energy?
evaporating
melting
freezing
boiling
68
What percent does this test count for my total grade?
10%
100%
2%
15%
69
What is the volume of this rock?
70 cm3
40 cm3
10 cm3
30 cm3
70
Which one is an accurate description of a liquid?
definite volume, definite shape
definite volume, no definite shape
no definite volume, definite shape
no definite volume, no definite shape
71
Which is
not
an example of a chemical property?
reactivity
flammability
boiling point
combustibility
72
Which is a true statement about ionic bonds?
same number of protons, different number of neutrons
share electrons with other elements, need prefixes
same number of protons, different number of energy shells
gives/takes electrons, electrically charged
73
How many atoms in 2Al
3
N
2
O
4
?
9
2
10
18
74
What is the most important lab safety rule?
it's ok to use chipped glass
listen to your teachers instructions
know how to use the eye wash
use a pencil on your lab report
