CHEM 101/CBL FINAL EXAM STUDY
GUIDE QUESTIONS AND ANSWERS
100% PASS GUARANTEE
(T/F) A hypothesis can never be proven wrong. - CORRECT ANSWER-False
(T/F) In addition or subtraction, the result carries the number of decimal places as
the quantity carrying the fewest decimal places. - CORRECT ANSWER-True
(T/F) In a chemical reaction, the substances present before the chemical change
are called reactants. - CORRECT ANSWER-True
(T/F) The scientific method ensures that poor theories are eliminated over time
and good theories remain. - CORRECT ANSWER-True
Which statement accurately describes the purpose of experiment?
A. Experiments are designed to produce the results predicted by a theory.
B. Experiments can be replaced by a simple, logical reasoning of known facts.
C. Experiments are designed to produce unexplainable results for further
investigation.
D. Experiments look for other observable predictions of a theory.
,E. None of the above - CORRECT ANSWER-A or D
Which of the statements below is part of the scientific method?
A. Observation and measurement
B. Formation of a hypothesis
C. Testing of a hypothesis by experimentation
D. Refinement of a hypothesis needed
E. All of the above step are part of the scientific method - CORRECT ANSWER-
E
What term describes a brief statement that summarizes many past observations
and predict new ones?
A. Experiment
B. Hypothesis
C. Scientific Law
D. Theory
E. None of the above - CORRECT ANSWER-C
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED
, __________________ -is a way of learning that emphasizes observation and
experimentation- to understand the world. - CORRECT ANSWER-Scientific
method
________________ is a brief statement that summarizes past observations and
predicts future ones. - CORRECT ANSWER-Scientific law
What are the six sigfig rules? - CORRECT ANSWER-1. All nonzero digits are
significant.
2. Interior zeros (zeros between two numbers) are significant.
3. Trailing zeros (zeros to the right of a nonzero number) that fall after a decimal
point are significant.
4. Trailing zeros that fall before a decimal point are significant.
5. Leading zeros (zeros to the left of the first nonzero number) are no significant.
They only serve to locate the decimal point.
6. Trailing zeros at the end of a number, but before an implied decimal point, are
ambiguous and should be avoided by using scientific notation.
How do you find density? - CORRECT ANSWER-D=m/v
(Density= Mass/Volume)
What is the correct scientific notation of the number 0.000502? - CORRECT
ANSWER-5.0210 x 10^-4
GUIDE QUESTIONS AND ANSWERS
100% PASS GUARANTEE
(T/F) A hypothesis can never be proven wrong. - CORRECT ANSWER-False
(T/F) In addition or subtraction, the result carries the number of decimal places as
the quantity carrying the fewest decimal places. - CORRECT ANSWER-True
(T/F) In a chemical reaction, the substances present before the chemical change
are called reactants. - CORRECT ANSWER-True
(T/F) The scientific method ensures that poor theories are eliminated over time
and good theories remain. - CORRECT ANSWER-True
Which statement accurately describes the purpose of experiment?
A. Experiments are designed to produce the results predicted by a theory.
B. Experiments can be replaced by a simple, logical reasoning of known facts.
C. Experiments are designed to produce unexplainable results for further
investigation.
D. Experiments look for other observable predictions of a theory.
,E. None of the above - CORRECT ANSWER-A or D
Which of the statements below is part of the scientific method?
A. Observation and measurement
B. Formation of a hypothesis
C. Testing of a hypothesis by experimentation
D. Refinement of a hypothesis needed
E. All of the above step are part of the scientific method - CORRECT ANSWER-
E
What term describes a brief statement that summarizes many past observations
and predict new ones?
A. Experiment
B. Hypothesis
C. Scientific Law
D. Theory
E. None of the above - CORRECT ANSWER-C
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED
, __________________ -is a way of learning that emphasizes observation and
experimentation- to understand the world. - CORRECT ANSWER-Scientific
method
________________ is a brief statement that summarizes past observations and
predicts future ones. - CORRECT ANSWER-Scientific law
What are the six sigfig rules? - CORRECT ANSWER-1. All nonzero digits are
significant.
2. Interior zeros (zeros between two numbers) are significant.
3. Trailing zeros (zeros to the right of a nonzero number) that fall after a decimal
point are significant.
4. Trailing zeros that fall before a decimal point are significant.
5. Leading zeros (zeros to the left of the first nonzero number) are no significant.
They only serve to locate the decimal point.
6. Trailing zeros at the end of a number, but before an implied decimal point, are
ambiguous and should be avoided by using scientific notation.
How do you find density? - CORRECT ANSWER-D=m/v
(Density= Mass/Volume)
What is the correct scientific notation of the number 0.000502? - CORRECT
ANSWER-5.0210 x 10^-4
