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Exam Review 2 Flashcards | StudBud
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Exam Review 2
Exam Review 2
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1
Elements are produced by
factories
rocks
wizards
stars
2
Extensive properties
involve factoring
depend on the amount of substance
do not depend on the amount of substance
extend the substance
3
The symbol P is
Argon
Platinum
Phosphine
Phosphorus
4
Which describes a heterogeneous substance?
has the same composition throughout
is the most common type of substance
is pure
has different composition throughout
5
Which phase of matter is most easily compressed?
gases
solids
liquids
6
Which term does not describe a physical change?
melting
burning
boiling
grinding
7
Plasma is the 4th state of matter where
atoms break down
atoms fall apart
atoms are stripped of electrons
atoms gain protons
8
Periods on the periodic table
are diagonal
start on the right and flow to the left
start on the left and flow to the right
are vertical columns
9
An example of an intensive property is ...
boiling point
freezing point
conductivity
luster (shiny or dull)
10
Liquids have
definite volume
definite shape
no volume
indefinite shape
11
How can you tell physical and chemical properties apart ?
The chemical nature of matter will be altered
Nothing can tell the properties apart.
chemical & physical properties are the same
physical properties will not change the chemical identity of matter
12
Bose Einstein Condensate can form when
temperatures match the room temperatures.
temperatures are extremely high
temperatures are near absolute zero
the atoms are stripped of electrons
13
Which is likely considered heterogeneous?
a gold ring
seawater
granite
sugar
14
Sodium has the chemical symbol
Na
Li
Os
So
15
Which is the definition of an atom in regards to matter?
atoms are not related to matter
the smallest unit of matter retaining chemical identity
is larger than a compound
the unit smaller than an electron
16
What is an example of Intensive property.
boiling point
density
volume
mass
17
Quantity of matter is described by
mass
conductivity
volume
density
18
Metals are
good conductors of heat
good conductors of electricity
break easily
mostly gases
19
Basic research is performed
by accident
to fix the world of its problems
by decree of our lizard overlords
in the pursuit of knowledge
20
What is required for matter to change states?
permission
nothing
more matter
energy
21
What is the definition of mass?
The amount of matter or atoms in an object
The amount of space something occupies
All of these
Something that takes up space
22
Which answer describes a physical property of the pictured substance?
fine powder
smoke results when mixed with water
yellow color
reacts with oxygen to form an acid
23
Which is considered a homogenous mixture?
OJ
granite marble
salt water solution
milk
24
Which defines a "chemical"?
anything toxic
food additives
substance with definite composition
anything not alive
25
Technological development typically occurs:
purely by accident
from the aliens the government is hiding from us
due to applied research
long after basic research is complete
