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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
melting point
B
freezing point
C
boiling 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
state of matter
B
properties
C
reactions
3) the energy of a substance heat, this increases as the temperature increases, causing the molecules to move faster
A
thermal energy
B
chemical energy
C
kinetic energy
4) the change in state from a solid directly to a gas, and never passes through the liquid state (like dry ice)
A
sublimation
B
deposition
C
vaporization
5) a solid that forms during a chemical reaction when two or more liquids are mixed
A
precipitate
B
aroma
C
fizz
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
subscript
B
exponent
C
molecule
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
molecule
B
compound
C
mixture
9) the smallest particle of an element that cannot be chemically broken down further
A
cell
B
atom
C
molecule
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
compound
B
physical change
C
chemical reaction
12) the amount of matter an object contains
A
mass
B
weight
C
volume
13) this state of matter has a definite shape and a definite volume; the particles are tightly packed in a fixed position
A
solid
B
liquid
C
gas
14) this state of matter is made of particles that are free to move around but stay close to one another
A
gas
B
solid
C
liquid
15) this state of matter has particles that move quickly and spread out to fill the container
A
liquid
B
solid
C
gas
16) Evidence of this is the formation of a gas
A
physical change
B
precipitate
C
chemical change
17) occurs when a liquid changes state to a gas, such as when water boils
A
deposition
B
vaporization
C
condensation
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
density
B
mass
C
volume
*select an answer for all questions
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