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Chemistry Unit Review Pt.1 Flashcards | StudBud
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Chemistry Unit Review Pt.1
Chemistry Unit Review Pt.1
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1
A change that alters the form of a substance without changing it into another substance is a
physical change.
energy change.
chemical change.
thermal change.
2
Sugar and salt are examples of
mixtures
pure substances
atoms
elements
3
Pure substances formed from chemical combinations of two or more different elements are called
compounds
solutions
elements
mixtures
4
A group of atoms that are joined together and act as a single unit are called a(n)
molecule
solution
compound
element
5
Sublimation is the change of a solid directly into
a liquid
a mixture
smaller pieces
a gas
6
The state of matter in which particles are arranged in either a crystalline or amorphous form.
fluid
solid
liquid
gas
7
A chemical change results in
different substances with different properties.
changes in pressure.
no new substances.
changes in state.
8
A solid is a state of matter that has a(n)
definite volume and a definite shape.
definite volume and an indefinite shape.
indefinite volume and an indefinite shape.
indefinite volume and a definite shape.
9
Dissolving a spoonful of sugar in tea or coffee is an example of
condensation.
a chemical change.
a physical change.
vaporization.
10
In which state of matter do the particles spread out and fill all the space available to them?
crystal
solid
liquid
gas
11
One example of changing a substance chemically is
crushing a can
burning wood
boiling water
filtering
12
What holds atoms together in a molecule?
gravity
chemical bonds
physical bonds
density
13
Formed when 2 or more substances mix together so well that they appear to be a single substance
element
mixture
solution
phase
14
Which type of matter consists of two or more substances that are NOT chemically combined?
pure substance
compounds
elements
mixtures
15
How do liquid water, ice, and water vapor differ from each other?
They are made of different kinds of atoms.
They are made of different kinds of molecules.
They are different compounds.
They are different states of matter.
16
Anything that has mass and occupies space is called
matter
volume
energy
chemistry
17
What is vaporization?
a liquid becoming a solid
a gas becoming a liquid
a gas becoming a solid
a liquid becoming a gas
18
Which process involves a gas changing into a liquid?
melting
freezing
vaporization
condensation
19
Substances that CANNOT be broken down chemically into other substances are
compounds
mixtures
solutions
elements
20
What always happens as a result of a chemical reaction?
New substances are produced.
The same substance appears in a different form.
Two or more substances are combined.
One substance breaks into tow or more different substances.
21
During chemical reactions, energy is
either absorbed or released
gained or lost
condensed
not involved
22
Particles of a liquid
decrease in volume with increasing temperature.
have no viscosity.
can move freely in a container but stay in close contact.
are tightly packed together and stay in a fixed place.
23
All elements are composed of extremely small particles called
atoms
mixtures
molecules
compounds
24
One example of changing a substance physically is
heating table sugar
burning paper
baking cookies
blending a milkshake
25
In which state of matter are particles packed tightly together in a fixed position?
solid
compound
liquid
gas
