CHEM 101 Ivy Tech Midterm Questions and
Answers (2026) | Study Guide Pack | Accurate
Solutions | A+
• Chemistry definition -✓✓The science that seeks to understand what matter does by
studying what atoms and molecules do
• virtually everything around you is composed of _________ -✓✓chemicals
• atoms are bound together to form several different types of ______________ -
✓✓molecules
• observations -✓✓involve measuring or observing some aspect of nature
• hypotheses -✓✓tentative interpretations of the observations
• laws -✓✓summarize the results of a large number of observations
• theories -✓✓are models that explain and give the underlying causes for observations
and laws
• scientific method: experimentation -✓✓laws, hypotheses, and theories must be tested
and validated by experiments
• scientific method -✓✓a way of learning that emphasizes observation and
experimentation to produce knowledge
• Law of Conservation of Mass -✓✓in a chemical reaction, matter is neither created nor
destroyed
• Who created the law of conservation of mass? -✓✓Lavoisier
• scientific theory -✓✓A well-tested explanation for a wide range of observations or
experimental results.
• Atomic Theory -✓✓a theory that states that all matter is composed of tiny particles
called atoms.
• Who created the atomic theory? -✓✓John Dalton
• uncertainty is indicated by the last __________ ___________ -✓✓reported digit
, • significant numbers -✓✓any number that is not a 0, sandwiched 0s, trailing 0s when
there is a decimal place
• not significant numbers -✓✓leading 0s and trailing 0s at the end of a number without a
decimal place
• Sig Fig Multiplication/Division Rule -✓✓carry the same number of sig figs as the factor
with the fewest sig figs
• Sig Figs: Adding and Subtracting -✓✓carry the same number of decimal places as the
quantity carrying the fewest decimal places
• unit for length -✓✓meter (m)
• unit for mass -✓✓kilogram (kg)
• unit for time -✓✓seconds (s)
• unit for temperature -✓✓Kelvin (K)
• Tera (T) -✓✓10^12
• Giga (G) -✓✓10^9
• Mega (M) -✓✓10^6
• kilo (k) -✓✓10^3
• hecto (h) -✓✓10^2
• deca (da) -✓✓10^1
• deci (d) -✓✓10^-1
• centi (c) -✓✓10^-2
• milli (m) -✓✓10^-3
• micro (u) -✓✓10^-6
• nano (n) -✓✓10^-9
• pico (p) -✓✓10^-12
Answers (2026) | Study Guide Pack | Accurate
Solutions | A+
• Chemistry definition -✓✓The science that seeks to understand what matter does by
studying what atoms and molecules do
• virtually everything around you is composed of _________ -✓✓chemicals
• atoms are bound together to form several different types of ______________ -
✓✓molecules
• observations -✓✓involve measuring or observing some aspect of nature
• hypotheses -✓✓tentative interpretations of the observations
• laws -✓✓summarize the results of a large number of observations
• theories -✓✓are models that explain and give the underlying causes for observations
and laws
• scientific method: experimentation -✓✓laws, hypotheses, and theories must be tested
and validated by experiments
• scientific method -✓✓a way of learning that emphasizes observation and
experimentation to produce knowledge
• Law of Conservation of Mass -✓✓in a chemical reaction, matter is neither created nor
destroyed
• Who created the law of conservation of mass? -✓✓Lavoisier
• scientific theory -✓✓A well-tested explanation for a wide range of observations or
experimental results.
• Atomic Theory -✓✓a theory that states that all matter is composed of tiny particles
called atoms.
• Who created the atomic theory? -✓✓John Dalton
• uncertainty is indicated by the last __________ ___________ -✓✓reported digit
, • significant numbers -✓✓any number that is not a 0, sandwiched 0s, trailing 0s when
there is a decimal place
• not significant numbers -✓✓leading 0s and trailing 0s at the end of a number without a
decimal place
• Sig Fig Multiplication/Division Rule -✓✓carry the same number of sig figs as the factor
with the fewest sig figs
• Sig Figs: Adding and Subtracting -✓✓carry the same number of decimal places as the
quantity carrying the fewest decimal places
• unit for length -✓✓meter (m)
• unit for mass -✓✓kilogram (kg)
• unit for time -✓✓seconds (s)
• unit for temperature -✓✓Kelvin (K)
• Tera (T) -✓✓10^12
• Giga (G) -✓✓10^9
• Mega (M) -✓✓10^6
• kilo (k) -✓✓10^3
• hecto (h) -✓✓10^2
• deca (da) -✓✓10^1
• deci (d) -✓✓10^-1
• centi (c) -✓✓10^-2
• milli (m) -✓✓10^-3
• micro (u) -✓✓10^-6
• nano (n) -✓✓10^-9
• pico (p) -✓✓10^-12
