CHEMISTRY 103: CHAPTER 1 QUESTIONS
WITH CORRECT ANSWERS
What is matter? - CORRECT ANSWER -Anything that has mass and occupies space
What is mass? - CORRECT ANSWER -A measurement of the amount of matter in an object
Does the mass of an object change by location? - CORRECT ANSWER -No; it stays the same on
the moon, Earth, etc...
What is weight? - CORRECT ANSWER -A measurement of the gravitational force acting on an
object
Does the weight of an object change by location? - CORRECT ANSWER -Yes; it changes
depending on the location such as Earth vs. the moon
What are physical properties of matter? - CORRECT ANSWER -Properties that can be observed
or measured without attempting to change the composition of the matter being observed.
What are examples of physical properties of matter? - CORRECT ANSWER -Color, shape, and
mass
What are chemical properties of matter? - CORRECT ANSWER -Properties that can be observed
or measured only by attempting to change the matter into new substances.
What are examples of chemical properties of matter? - CORRECT ANSWER -Flammability and
the ability to react (e.g. when vinegar and baking soda are mixed)
, What are physical changes of matter? - CORRECT ANSWER -These changes take place without a
change in composition.
What are chemical changes of matter? - CORRECT ANSWER -These changes are always
accompanied by a change in composition.
What are examples of physical changes of matter? - CORRECT ANSWER -Examples: freezing,
melting, or evaporation of a substance
(e.g. water)
What are examples of chemical changes of matter? - CORRECT ANSWER -Examples: burning of
paper and the fizzing of a mixture of vinegar and baking soda
What are atoms? - CORRECT ANSWER -Tiny particles that all matter is made up of
What are elements? - CORRECT ANSWER -Substances that are made up of atoms that are
identical
What are compounds? - CORRECT ANSWER -Combinations of atoms of two or more elements.
What occurs to atoms during chemical reactions? - CORRECT ANSWER -They are rearranged,
separated, or combined, but are never created nor destroyed
What are molecules? - CORRECT ANSWER -The smallest particle of a pure substance that is
capable of a stable independent existence
What are molecules made up of? - CORRECT ANSWER -Atoms
WITH CORRECT ANSWERS
What is matter? - CORRECT ANSWER -Anything that has mass and occupies space
What is mass? - CORRECT ANSWER -A measurement of the amount of matter in an object
Does the mass of an object change by location? - CORRECT ANSWER -No; it stays the same on
the moon, Earth, etc...
What is weight? - CORRECT ANSWER -A measurement of the gravitational force acting on an
object
Does the weight of an object change by location? - CORRECT ANSWER -Yes; it changes
depending on the location such as Earth vs. the moon
What are physical properties of matter? - CORRECT ANSWER -Properties that can be observed
or measured without attempting to change the composition of the matter being observed.
What are examples of physical properties of matter? - CORRECT ANSWER -Color, shape, and
mass
What are chemical properties of matter? - CORRECT ANSWER -Properties that can be observed
or measured only by attempting to change the matter into new substances.
What are examples of chemical properties of matter? - CORRECT ANSWER -Flammability and
the ability to react (e.g. when vinegar and baking soda are mixed)
, What are physical changes of matter? - CORRECT ANSWER -These changes take place without a
change in composition.
What are chemical changes of matter? - CORRECT ANSWER -These changes are always
accompanied by a change in composition.
What are examples of physical changes of matter? - CORRECT ANSWER -Examples: freezing,
melting, or evaporation of a substance
(e.g. water)
What are examples of chemical changes of matter? - CORRECT ANSWER -Examples: burning of
paper and the fizzing of a mixture of vinegar and baking soda
What are atoms? - CORRECT ANSWER -Tiny particles that all matter is made up of
What are elements? - CORRECT ANSWER -Substances that are made up of atoms that are
identical
What are compounds? - CORRECT ANSWER -Combinations of atoms of two or more elements.
What occurs to atoms during chemical reactions? - CORRECT ANSWER -They are rearranged,
separated, or combined, but are never created nor destroyed
What are molecules? - CORRECT ANSWER -The smallest particle of a pure substance that is
capable of a stable independent existence
What are molecules made up of? - CORRECT ANSWER -Atoms
