Chem 120 final exam study guide
Question and answers 100% correct
2025
chemistry - correct answer ✔the science that tries to understand how matter
behaves by studying how atoms and molecules behave
scientific method - correct answer ✔ways of learning that emphasizes
observation and experimentation (self correcting)
observation - correct answer ✔we go out in nature and ask questions we
measure or observe some aspect of nature
hypothesis - correct answer ✔tentative interpretation of an observation
law - correct answer ✔summarizes a large number of observations
theory - correct answer ✔model that explains and gives underlying causes
for observation
imprecise - correct answer ✔quick and easy like color
precise - correct answer ✔measuring and proving like numbers
scientific notation - correct answer ✔1x10^6
, significant figures - correct answer ✔indicates how good or bad a
measurement is
all non zeros are - correct answer ✔significant
interior zeros - correct answer ✔significant
trailing zeros before a decimal place - correct answer ✔significant
trailing zeros after decimal place - correct answer ✔significant
16.5400 - correct answer ✔6 sig figs
130. - correct answer ✔3 sig figs
5003 - correct answer ✔4 sig figs
exact numbers - correct answer ✔unlimited sig figs
3 - correct answer ✔unlimited sig figs
multiplication and division - correct answer ✔determined by the number with
the fewest significant figures
addition and subtraction - correct answer ✔determined by decimal place
tera - correct answer ✔T 10^12
Question and answers 100% correct
2025
chemistry - correct answer ✔the science that tries to understand how matter
behaves by studying how atoms and molecules behave
scientific method - correct answer ✔ways of learning that emphasizes
observation and experimentation (self correcting)
observation - correct answer ✔we go out in nature and ask questions we
measure or observe some aspect of nature
hypothesis - correct answer ✔tentative interpretation of an observation
law - correct answer ✔summarizes a large number of observations
theory - correct answer ✔model that explains and gives underlying causes
for observation
imprecise - correct answer ✔quick and easy like color
precise - correct answer ✔measuring and proving like numbers
scientific notation - correct answer ✔1x10^6
, significant figures - correct answer ✔indicates how good or bad a
measurement is
all non zeros are - correct answer ✔significant
interior zeros - correct answer ✔significant
trailing zeros before a decimal place - correct answer ✔significant
trailing zeros after decimal place - correct answer ✔significant
16.5400 - correct answer ✔6 sig figs
130. - correct answer ✔3 sig figs
5003 - correct answer ✔4 sig figs
exact numbers - correct answer ✔unlimited sig figs
3 - correct answer ✔unlimited sig figs
multiplication and division - correct answer ✔determined by the number with
the fewest significant figures
addition and subtraction - correct answer ✔determined by decimal place
tera - correct answer ✔T 10^12
