Chemistry 104 Exam 1 Review questions and
answers 2026\2027 A+ Grade
Chemistry
- correct answer the study of the composition, structure, and properties of matter and the changes it
undergoes
Scientific Method
- correct answer set of general procedures based on experimentation and observation used to acquire
scientific knowledge and explain natural phenomena
Hypothesis
- correct answer model or statement that can be tested by experiment, offers an explanation for a
scientific law
Experiment
- correct answer well defines controlled procedure for obtaining information about a system under
study
Observation
- correct answer statement that describes something we see, hear, smell, taste, or feel
Scientific Fact
- correct answer is a reproducible piece of data about some natural phenomenon that is obtained from
experimentation
Scientific Law
- correct answer generalization that summarizes scientific facts about a natural phenomenon
, Scientific Theory
- correct answer scientific hypothesis that has been tested and validated over a long period of time
Exact Number
- correct answer number that has a value with no uncertainty in it, known exactly
Inexact Number
- correct answer number that has a value with a degree of uncertainty in it
Precision
- correct answer indicator of how close a series of measurements on the sam object are to each other
Accuracy
- correct answer indicator of how close a measurement comes to a true or accepted value
Significant Figures
- correct answer digits in any measurement that are known with certainty plus one digit that is uncertain
Scientific Notation
- correct answer A method of writing or displaying numbers in terms of a decimal number between 1
and 10 multiplied by a power of 10.
SI Base Unit
- correct answer one of seven SI units of measurement from which all other SI measurement units can
be derived
meter, kilogram, second, kelvin, mole, ampere, candela
- correct answer Name SI base units
Derived Unit
- correct answer a unit that is defined by a combination of base units
answers 2026\2027 A+ Grade
Chemistry
- correct answer the study of the composition, structure, and properties of matter and the changes it
undergoes
Scientific Method
- correct answer set of general procedures based on experimentation and observation used to acquire
scientific knowledge and explain natural phenomena
Hypothesis
- correct answer model or statement that can be tested by experiment, offers an explanation for a
scientific law
Experiment
- correct answer well defines controlled procedure for obtaining information about a system under
study
Observation
- correct answer statement that describes something we see, hear, smell, taste, or feel
Scientific Fact
- correct answer is a reproducible piece of data about some natural phenomenon that is obtained from
experimentation
Scientific Law
- correct answer generalization that summarizes scientific facts about a natural phenomenon
, Scientific Theory
- correct answer scientific hypothesis that has been tested and validated over a long period of time
Exact Number
- correct answer number that has a value with no uncertainty in it, known exactly
Inexact Number
- correct answer number that has a value with a degree of uncertainty in it
Precision
- correct answer indicator of how close a series of measurements on the sam object are to each other
Accuracy
- correct answer indicator of how close a measurement comes to a true or accepted value
Significant Figures
- correct answer digits in any measurement that are known with certainty plus one digit that is uncertain
Scientific Notation
- correct answer A method of writing or displaying numbers in terms of a decimal number between 1
and 10 multiplied by a power of 10.
SI Base Unit
- correct answer one of seven SI units of measurement from which all other SI measurement units can
be derived
meter, kilogram, second, kelvin, mole, ampere, candela
- correct answer Name SI base units
Derived Unit
- correct answer a unit that is defined by a combination of base units
