Which one is an accurate description of a liquid?

definite volume, no definite shape

Atoms bond with other atoms because

they want to have 8 electrons in outer shell

How much time should I spend studying for this test?

at least an hour, until I know all the material

form ionic bonds with non-metals

Endothermic reactions...

have more energy in reactants than in product

Which is true about neutrons?

equals atomic mass minus protons

What is the most important lab safety rule?

listen to your teachers instructions

Which one is an example of a physical change?

washing a car, getting in a wreck

Which is a true statement about ionic bonds?

gives/takes electrons, electrically charged

Which one is an accurate description of a gas?

no definite volume, no definite shape

Which is not true about protons?

always same as number of neutrons

Which one is not true about the kinetic theory of matter?

molecules are made of different elements

Which one is an accurate description of a solid?

definite volume, definite shape

Which is not true about covalent bonds?

criss cross to find out subscripts

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Physical Science Chemistry Final Exam Review

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9th grade physical science chemistry final exam review #physicalscience #chemistry

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Questions 74

Answers

1
What type of reaction is H + Cl -> HCl?
combustion
synthesis
double displacement
single displacement
2
Which one is an accurate description of a liquid?
no definite volume, no definite shape
no definite volume, definite shape
definite volume, definite shape
definite volume, no definite shape
3
Atoms bond with other atoms because
they want to have 8 electrons in outer shell
they want the most electrons
the want the most protons
they want to have 8 electrons in inner shell
4
What is the mass for a cube? length = 2cm and density = 10 g/cm3
80g
800g
200g
20g
5
How much time should I spend studying for this test?
not at all
5 minutes
at least an hour
until I know all the material
6
Which one is not a way to separate a mixture?
Burning
Evaporation
Filtration
Magnet
7
Transition metals...
form negative ions
are dull
all have 3 valence electrons
form ionic bonds with non-metals
8
Endothermic reactions...
are the same as exothermic reactions
utilize fusion
release energy
have more energy in reactants than in product
9
When matter changes from a solid to a gas it is called...
condensation
subordination
evaporation
sublimation
10
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
11
What is the density if mass = 10g and volume =2cm³?
5 g/cm3
$5
2 g/cm3
20 g/cm3
12
Alkenes are sporting what kind of covalent bond?
single bonds
double bonds
3 electrons
2 electrons
13
What is the most important lab safety rule?
it's ok to use chipped glass
use a pencil on your lab report
know how to use the eye wash
listen to your teachers instructions
14
The dependent variable is found on the ___ axis.
y
a
x
z
15
What is the volume of this rock?
10 cm3
30 cm3
70 cm3
40 cm3
16
What is the volume? density = 100g/cm3 and mass = 500kg?
50 cm3
5 cm3
5000 cm3
15 cm3
17
Which one is an example of a physical change?
washing a car
turning on a car engine
buying a car
getting in a wreck
18
Which statement is true?
carbon's atomic number is 12
carbon has 6 protons
carbon has 6 valence electrons
carbon has 7 electrons
19
The first step in the scientific method is...
Repeat an experiment
State a conclusion
Make an observation
Think about something
20
Three subatomic particles are...
protons, neutrons, electrons
groups, periods, families
nucleus, energy levels, orbitals
carbon, oxygen, hydrogen
21
Which number is the superscript in 2Al⁺³Cl₅?
3
7
5
2
22
Which is a true statement about ionic bonds?
gives/takes electrons, electrically charged
same number of protons, different number of neutrons
same number of protons, different number of energy shells
share electrons with other elements, need prefixes
23
The red elements are...
semi-metals
metalloidss
metals
non-metals
24
Heterogeneous or homogeneous?
homogeneous
heterogeneous
25
Which one is an accurate description of a gas?
no definite volume, no definite shape
definite shape, no definite volume
definite shape, definite volume
no definite volume, definite shape
26
A pH of 13 is...
weak base
weak acid
strong base
neutral
27
All of the following changes in state require energy except _____.
freezing
melting
evaporating
boiling
28
To build atomic bonds, scientist utilize...
fusion
fission
29
You should measure the mass of a book using...
km
mL
cm3
kg
30
Which is not true about protons?
always same as number of neutrons
always same as the atomic number
always bigger than electrons
always a positive charge
31
The blue elements are...
semi-metals
metalloids
non-metals
metals
32
The length of a car is about...
5cm
5mm
5m
5km
33
The particles in which state of matter move the fastest?
plasma
gas
liquid
solid
34
In an experiment measuring plant growth over a week, the growth of the plant is what variable?
independent
dependent
35
Exothermic reactions...
require energy
create energy
destroy energy
release energy
36
Which one is not true about the kinetic theory of matter?
molecules are made of different elements
atoms are in constant motion
all matter is made of atoms
the higher the temperature, the faster the particle moves
37
Which graph gives info in percents?
bar
pie
line
x axis
38
There are ___ periods on the periodic table.
18
12
8
7
39
How many atoms in 2Al₃N₂O₄?
9
2
18
10
40
Heterogeneous or Homogeneous mixture?
homogeneous
heterogeneous
41
Heterogeneous or homogeneous?
homogeneous
heterogeneous
42
Alkali metals...
have 3 valence electrons
bond with noble gases
are extremely reactive
are in group 2
43
Which one is an accurate description of a solid?
definite volume, definite shape
definite shape, no definite volume
no definite shape, definite volume
no definite shape, no definite volume
44
Which is an not example of a physical change?
crushing
tearing
smashing
burning
45
A pH of 7 means...
the substance is neutral
the substance is a soap
the substance is corrosive
the substance can harm skin
46
A coffee pot is an example of
condensation
filtration
evaporation
sublimation
47
Which is not true about electrons?
orbits around the nucleus
determines an elements reactivity
largest sub atomic particle
negative charge
48
What type of reaction is this HCl + NaO -> HO + NaCl?
double displacement
decomposition
single displacement
synthesis
49
Which is not true about covalent bonds?
shares electrons
criss cross to find out subscripts
uses prefixes to name compounds
between non-metals and non-metals
50
The volume of a liquid is measured in...
kg
L
m
cm3
51
15km = ______ cm
1,500,000cm
0.0000015cm
1.5cm
1,500cm
52
Which is not an example of a chemical property?
reactivity
flammability
boiling point
combustibility
53
Which is not an example of a physical property?
boiling point
odor
flammability
density
54
The hypothesis in the scientific method starts with what word(s)?
How?
Why?
If...,then...
Say what?
55
What type of graph would I use to show plant growth over a week?
bar
growth chart
line
circle
56
If I want to compare favorite pets among a group of people, I would use a _____ graph.
photo
line
bar
pie
57
Which is an example of a chemical change?
picking out my favorite cereal
digesting cereal
pouring milk in cereal
removing blueberries from cereal
58
The correct name for H₂O₂is...
hydrogen IV dioxide
dihydrogen monooxide
hydrogen oxide
dihydrogen dioxide
59
______ creates bigger nuclei.
fusion
fission
60
A pH of 9 indicates a ______ .
weak base
strong base
weak acid
strong acid
61
A centrifuge separates a mixture by....
heating, cooking the particles
bouncing, making the particles split
spinning, making the larger particles sink
twisting, shaking particles apart
62
A pH of 2 indicates a ______ .
strong acid
weak acid
strong base
weak base
63
The particles in a liquid...
vibrate in place
slide by each other
move faster than gases
don't move
64
Which of the following changes in state of matter release energy?
freezing
evaporating
melting
boiling
65
Who is going to do awesome on their chemistry final?
everybody
the people who study
minions
hairy arms Tyler
66
How many molecules in 2Al₃N₄O₃?
2
11
20
10
67
Which is a sign of a chemical change?
tearing
gas bubbles
evaporating
sudden color change
68
When matter changes from a liquid to a gas it is called...
condensation
sublimation
melting
evaporation
69
What percent does this test count for my total grade?
100%
15%
2%
10%
70
Lewis dot structures show...
energy shells
valence electrons
all electrons
as many pretty little circles you like
71
These elements are known as...
metals
metalloids
semi-metals
non-metals
72
600cm = _____ m
0.6m
0.06m
60m
6m
73
The correct name for AlCl₃ is...
monoaluminum trichloride
aluminum trichloride
aluminum chloride
aluminum III chloride
74
Halogens ...
have 7 energy shells
are in group 18
are transition metals
have 7 valence electrons

Physical Science Chemistry Final Exam Review Flashcards | StudBud