CHEM 121 EXAM 1 FINAL PAPER VERIFIED QUESTIONS ACCURATE SOLUTIONS
CHEM 121 EXAM 1 Questions and Answers Verified
Solutions Latest Update 2026/2027
Question:
physical change
Answer:
Alterations to the physical state without changing the substances composition
Question:
What is the result of a chemical change?
Answer:
Formation of new chemical bonds creating new substances with different identities
Question:
Define chemical change.
Answer:
Process that results in the formation of new substances with different identities
Question:
Example of chemical changes
Answer:
Rusting, burning, metabolism
Question:
Reversible physical changes
Answer:
, Transitions between solid, liquid and gas states such as melting, freezing, vaporization
Question:
Tera
Answer:
10^12
Question:
giga
Answer:
10^9
Question:
Mega
Answer:
10^6
Question:
Kilo
Answer:
10^3
Question:
Hecto
Answer:
10^2
CHEM 121 EXAM 1 Questions and Answers Verified
Solutions Latest Update 2026/2027
Question:
physical change
Answer:
Alterations to the physical state without changing the substances composition
Question:
What is the result of a chemical change?
Answer:
Formation of new chemical bonds creating new substances with different identities
Question:
Define chemical change.
Answer:
Process that results in the formation of new substances with different identities
Question:
Example of chemical changes
Answer:
Rusting, burning, metabolism
Question:
Reversible physical changes
Answer:
, Transitions between solid, liquid and gas states such as melting, freezing, vaporization
Question:
Tera
Answer:
10^12
Question:
giga
Answer:
10^9
Question:
Mega
Answer:
10^6
Question:
Kilo
Answer:
10^3
Question:
Hecto
Answer:
10^2
