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Introduction To Chemistry 2016
Test Description: States of matter, physical and chemical properties, physical and chemical changes, atomic composition.
Instructions: Answer all questions to get your test result.
1) This is a characteristic property, and is the temperature at which a solid changes state and becomes a liquid.
A
freezing point
B
boiling point
C
melting point
2) characteristics of substances that are used to describe and identify matter, such as size, shape, color, and ability to react to other chemicals
A
reactions
B
state of matter
C
properties
3) the energy of a substance heat, this increases as the temperature increases, causing the molecules to move faster
A
kinetic energy
B
thermal energy
C
chemical energy
4) the change in state from a solid directly to a gas, and never passes through the liquid state (like dry ice)
A
deposition
B
vaporization
C
sublimation
5) a solid that forms during a chemical reaction when two or more liquids are mixed
A
fizz
B
precipitate
C
aroma
6) when reading and writing chemical formulas, this is the small number after a chemical symbol that tells how many atoms of the element there are
A
exponent
B
molecule
C
subscript
7) this forms when two or more ELEMENTS chemically combine
A
molecule
B
atom
C
compound
8) this is created when two or more atoms chemically combine (the atoms can be of the same element, or they can be different
A
compound
B
mixture
C
molecule
9) the smallest particle of an element that cannot be chemically broken down further
A
molecule
B
cell
C
atom
10) Occurs without altering the chemical makeup of a substance, such as dissolving sugar in water
A
physical change
B
chemical property
C
chemical change
11) when two or more substances chemically combine and form new substances (such as a gas); occurs when the bonds between atoms break or new ones form
A
physical change
B
compound
C
chemical reaction
12) the amount of matter an object contains
A
volume
B
weight
C
mass
13) this state of matter has a definite shape and a definite volume; the particles are tightly packed in a fixed position
A
gas
B
liquid
C
solid
14) this state of matter is made of particles that are free to move around but stay close to one another
A
liquid
B
solid
C
gas
15) this state of matter has particles that move quickly and spread out to fill the container
A
liquid
B
gas
C
solid
16) Evidence of this is the formation of a gas
A
physical change
B
chemical change
C
precipitate
17) occurs when a liquid changes state to a gas, such as when water boils
A
condensation
B
vaporization
C
deposition
18) occurs when a liquid changes state to a gas, such as when a water puddle slowly disappears throughout the day
A
evaporation
B
sublimation
C
condensation
19) the change in state when a gas cools and the molecules slow down to become a liquid
A
evaporation
B
condenation
C
melting
20) the amount of space that an object takes up
A
volume
B
density
C
mass
*select an answer for all questions
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