CHEM 101 Ivy Tech Midterm Questions and
Answers (2026) | Prep Questions | 100%
Correct Answers | A+
• What is the definition of a scientific theory? -✓✓A model that explains the
underlying reasons for observations and laws.
• Which of the statements below is NOT part of the scientific method? -
✓✓Observation and measurement; Formation of a hypothesis; Testing of a
hypothesis by experimentation; Refinement of a hypothesis as needed
All of the above steps are part of the scientific method.
• Which statement about the scientific method is TRUE? -✓✓The scientific
method emphasizes observation and experimentation as the way to
understand the world.
• Who discovered the atomic theory? -✓✓John Dalton
• Which of the following is an example of an observation? -✓✓When a can
of soda pop is opened, a fizzing sound is heard.
• Which statement about a hypothesis is TRUE? -✓✓It is a tentative
interpretation of explanation.; It has the potential to be proven wrong.; It
can be tested by experiments.; It is part of the scientific method.
All of the above statements are true.
• A sample of wood with a mass of 3.0 grams was burned in an open dish.
The ashes weighed 1.2 grams. What happened to the rest of the wood? -
✓✓The remaining 1.8 grams was converted into gaseous compounds.
• Quantification is an important tool in understanding chemistry. -✓✓True
• Atoms and molecules determine how matter behaves. -✓✓True
• The atomic theory explains why the law of conservation of mass is true. -
✓✓True
, • Chemicals make up everything around you, including your own body. -
✓✓True
• Chemistry is the science that seeks to understand what matter does by
studying living organisms. -✓✓False
• Scientific theories are also called models. -✓✓True
• What is chemistry? -✓✓Chemistry is the science that tries to understand
how matter behaves by studying how atoms and molecules behave.
• Determine the answer to the following equation with correct number of
significant figures: 2.02+8.102-0.0297 = -✓✓10.09
• Which of the following would NOT be considered a correct conversion
factor? -✓✓1 pair of shoes = 1 shoe
• The correct number of significant figures in the number 0.002320 is: -
✓✓7
• In the number 48.93, which digit is estimated? -✓✓3
• There are exactly 2.54 cm in 1 in. When using this conversion factor, how
many significant figures are you limited to? -✓✓infinite number of
significant figures
• The wavelength of blue light is 0.00000045 m. Express this wavelength in
scientific notation. -✓✓4.5 x 10-7 m
• How many significant digits should be reported in the answer to the
following question? (4.3-3.7) x 12.3 = -✓✓1
• A plastic block has dimensions of 2.2 cm x 3.0 cm x 1.5 cm and a mass of
12.4 grams. Will the block float in water and why? -✓✓No because the
density of the block is 1.3g/mL which is greater than the density of water.
Answers (2026) | Prep Questions | 100%
Correct Answers | A+
• What is the definition of a scientific theory? -✓✓A model that explains the
underlying reasons for observations and laws.
• Which of the statements below is NOT part of the scientific method? -
✓✓Observation and measurement; Formation of a hypothesis; Testing of a
hypothesis by experimentation; Refinement of a hypothesis as needed
All of the above steps are part of the scientific method.
• Which statement about the scientific method is TRUE? -✓✓The scientific
method emphasizes observation and experimentation as the way to
understand the world.
• Who discovered the atomic theory? -✓✓John Dalton
• Which of the following is an example of an observation? -✓✓When a can
of soda pop is opened, a fizzing sound is heard.
• Which statement about a hypothesis is TRUE? -✓✓It is a tentative
interpretation of explanation.; It has the potential to be proven wrong.; It
can be tested by experiments.; It is part of the scientific method.
All of the above statements are true.
• A sample of wood with a mass of 3.0 grams was burned in an open dish.
The ashes weighed 1.2 grams. What happened to the rest of the wood? -
✓✓The remaining 1.8 grams was converted into gaseous compounds.
• Quantification is an important tool in understanding chemistry. -✓✓True
• Atoms and molecules determine how matter behaves. -✓✓True
• The atomic theory explains why the law of conservation of mass is true. -
✓✓True
, • Chemicals make up everything around you, including your own body. -
✓✓True
• Chemistry is the science that seeks to understand what matter does by
studying living organisms. -✓✓False
• Scientific theories are also called models. -✓✓True
• What is chemistry? -✓✓Chemistry is the science that tries to understand
how matter behaves by studying how atoms and molecules behave.
• Determine the answer to the following equation with correct number of
significant figures: 2.02+8.102-0.0297 = -✓✓10.09
• Which of the following would NOT be considered a correct conversion
factor? -✓✓1 pair of shoes = 1 shoe
• The correct number of significant figures in the number 0.002320 is: -
✓✓7
• In the number 48.93, which digit is estimated? -✓✓3
• There are exactly 2.54 cm in 1 in. When using this conversion factor, how
many significant figures are you limited to? -✓✓infinite number of
significant figures
• The wavelength of blue light is 0.00000045 m. Express this wavelength in
scientific notation. -✓✓4.5 x 10-7 m
• How many significant digits should be reported in the answer to the
following question? (4.3-3.7) x 12.3 = -✓✓1
• A plastic block has dimensions of 2.2 cm x 3.0 cm x 1.5 cm and a mass of
12.4 grams. Will the block float in water and why? -✓✓No because the
density of the block is 1.3g/mL which is greater than the density of water.
