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CHEM 111 ACS Final Questions and
Correct Answers/ Latest Update / Already
Graded
chemistry
Ans: the study of matter and how it changes
matter
Ans: Anything that has mass and takes up space
elements
Ans: molecules composed of one kind of atom; cannot be
broken into simpler units by chemical reactions.
atoms
Ans: The basic building blocks of matter
property
Ans: A characteristic that defines the value, appearance,
and/or state of an object.
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molecule
Ans: A group of atoms bonded together
gas
Ans: A state of matter with no definite shape or volume
liquid
Ans: A state of matter that has a definite volume but no
definite shape.
solid
Ans: A form of matter that has a definite shape and volume
states of matter
Ans: The physical forms of matter, which include solid, liquid,
and gas
pure substance
Ans: A sample of matter, either a single element or a single
compound, that has definite chemical and physical properties
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compounds
Ans: 2 or more elements chemically combined
law of constant composition
Ans: In any given compound of any given amount, the
elements will always be found in the same proportions by mass.
(law of definite proportions)
mixtures
Ans: 2 or more components physically combined together;
atoms and molecules don't change as there is no chemical
bonding. Can separate out the components.
heterogeneous mixture
Ans: A mixture that is not uniform in composition; components
are not evenly distributed throughout the mixture
homogeneous mixture
Ans: A mixture in which substances are evenly distr ibuted
throughout the mixture
All rights reserved © 2025/ 2026 |
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mixture
Ans: A combination of two or more substances that are not
chemically combined
physical properties
Ans: Characteristics of matter that can be seen through direct
observation such as density, melting point, and boiling point.
chemical properties
Ans: Describe the way a substance may change, or react, to
form other substances. (Ex: Flammability)
chemical change
Ans: A change in matter that produces one or more new
substances
physical change
Ans: A change in a substance that does not involve a change in
the identity of the substance
All rights reserved © 2025/ 2026 |
CHEM 111 ACS Final Questions and
Correct Answers/ Latest Update / Already
Graded
chemistry
Ans: the study of matter and how it changes
matter
Ans: Anything that has mass and takes up space
elements
Ans: molecules composed of one kind of atom; cannot be
broken into simpler units by chemical reactions.
atoms
Ans: The basic building blocks of matter
property
Ans: A characteristic that defines the value, appearance,
and/or state of an object.
All rights reserved © 2025/ 2026 |
, Page |2
molecule
Ans: A group of atoms bonded together
gas
Ans: A state of matter with no definite shape or volume
liquid
Ans: A state of matter that has a definite volume but no
definite shape.
solid
Ans: A form of matter that has a definite shape and volume
states of matter
Ans: The physical forms of matter, which include solid, liquid,
and gas
pure substance
Ans: A sample of matter, either a single element or a single
compound, that has definite chemical and physical properties
All rights reserved © 2025/ 2026 |
, Page |3
compounds
Ans: 2 or more elements chemically combined
law of constant composition
Ans: In any given compound of any given amount, the
elements will always be found in the same proportions by mass.
(law of definite proportions)
mixtures
Ans: 2 or more components physically combined together;
atoms and molecules don't change as there is no chemical
bonding. Can separate out the components.
heterogeneous mixture
Ans: A mixture that is not uniform in composition; components
are not evenly distributed throughout the mixture
homogeneous mixture
Ans: A mixture in which substances are evenly distr ibuted
throughout the mixture
All rights reserved © 2025/ 2026 |
, Page |4
mixture
Ans: A combination of two or more substances that are not
chemically combined
physical properties
Ans: Characteristics of matter that can be seen through direct
observation such as density, melting point, and boiling point.
chemical properties
Ans: Describe the way a substance may change, or react, to
form other substances. (Ex: Flammability)
chemical change
Ans: A change in matter that produces one or more new
substances
physical change
Ans: A change in a substance that does not involve a change in
the identity of the substance
All rights reserved © 2025/ 2026 |
