CHEM 121 EXAM 1 ACTUAL TEST PAPER QUESTIONS CORRECT ANSWERS GRADED A
PLUS
CHEM 121 EXAM 1 Questions and Answers Verified
Solutions Latest Update 2026/2027
Question:
What are the three states of matter?
Answer:
solid, liquid and gas
Question:
___ is the study of properties and behavior of matter.
Answer:
chemistry
Question:
___ is the physical material of the universe. It is also anything the has mass and occupies space.
Answer:
matter
Question:
__ is matter that is made up of one "thing"
Answer:
pure substance
Question:
__ is a mixture that doesn't have the same composition, properties, and appearance throughout.
Answer:
,heterogeneous
Question:
__ is a mixture that is uniform throughout.
Answer:
homogeneous
Question:
Solid to a gas is
Answer:
sublimation
Question:
Gas to a solid is
Answer:
deposition
Question:
Liquid to a solid is
Answer:
freezing
Question:
Liquid to a gas is
Answer:
vaporization
, Question:
Gas to a liquid is
Answer:
condensation
Question:
Solid to a liquid is
Answer:
melting
Question:
What two things make up pure substances?
Answer:
elements and compounds (molecules)
Question:
How many known elements are there?
Answer:
118
Question:
What are most elements?
Answer:
monatomic
PLUS
CHEM 121 EXAM 1 Questions and Answers Verified
Solutions Latest Update 2026/2027
Question:
What are the three states of matter?
Answer:
solid, liquid and gas
Question:
___ is the study of properties and behavior of matter.
Answer:
chemistry
Question:
___ is the physical material of the universe. It is also anything the has mass and occupies space.
Answer:
matter
Question:
__ is matter that is made up of one "thing"
Answer:
pure substance
Question:
__ is a mixture that doesn't have the same composition, properties, and appearance throughout.
Answer:
,heterogeneous
Question:
__ is a mixture that is uniform throughout.
Answer:
homogeneous
Question:
Solid to a gas is
Answer:
sublimation
Question:
Gas to a solid is
Answer:
deposition
Question:
Liquid to a solid is
Answer:
freezing
Question:
Liquid to a gas is
Answer:
vaporization
, Question:
Gas to a liquid is
Answer:
condensation
Question:
Solid to a liquid is
Answer:
melting
Question:
What two things make up pure substances?
Answer:
elements and compounds (molecules)
Question:
How many known elements are there?
Answer:
118
Question:
What are most elements?
Answer:
monatomic
