CHEM 103 LAB EXAM 1 PORTAGE LEARNING
VIEW AHEAD 2026 BUNDLED QUESTIONS AND
SOLUTIONS GUARANTEED PASS
◉ A ________ property is one that can be observed without changing
the chemical makeup of a substance, while a ________ property
describes how a substance undergoes a chemical change/reaction.
Answer: physical; chemical
◉ ____________ properties are independent of sample size, while
____________ properties depend on sample size. Answer: Intensive;
extensive
◉ What are the SI base units for length, mass, time, and
temperature? Answer: Length: Meter
Mass: Kilogram
Time: Second
Temperature: Kelvin
◉ Digits that result from a measurement such that only the digit
farthest to the right is not known with certainty are called
______________ _______________. Answer: significant figures
, ◉ ______________ refers to how close a measurement is to the true or
accepted value Answer: Accuracy
◉ ___________ refers to how close repeated measurements come to
their average. Answer: Precision
◉ The more significant figures in a measured quantity, the ________
precise the measurement Answer: more
◉ For multiplication and division, the number of significant figures
in the answer should be equal to the number of sig figs in the
__________ precise measurement Answer: least
◉ For addition and subtraction, the answer should have the same
number of decimal places as the quantity with _____________ number
of decimal places. Answer: fewest
◉ Numbers that come from a definition, or those that come from a
direct count, are called _________ numbers and have ___________
significant figures Answer: exact; infinite
◉ Scientists use dimensioal analysis when they want to convert from
one set of ___________ to another Answer: units
VIEW AHEAD 2026 BUNDLED QUESTIONS AND
SOLUTIONS GUARANTEED PASS
◉ A ________ property is one that can be observed without changing
the chemical makeup of a substance, while a ________ property
describes how a substance undergoes a chemical change/reaction.
Answer: physical; chemical
◉ ____________ properties are independent of sample size, while
____________ properties depend on sample size. Answer: Intensive;
extensive
◉ What are the SI base units for length, mass, time, and
temperature? Answer: Length: Meter
Mass: Kilogram
Time: Second
Temperature: Kelvin
◉ Digits that result from a measurement such that only the digit
farthest to the right is not known with certainty are called
______________ _______________. Answer: significant figures
, ◉ ______________ refers to how close a measurement is to the true or
accepted value Answer: Accuracy
◉ ___________ refers to how close repeated measurements come to
their average. Answer: Precision
◉ The more significant figures in a measured quantity, the ________
precise the measurement Answer: more
◉ For multiplication and division, the number of significant figures
in the answer should be equal to the number of sig figs in the
__________ precise measurement Answer: least
◉ For addition and subtraction, the answer should have the same
number of decimal places as the quantity with _____________ number
of decimal places. Answer: fewest
◉ Numbers that come from a definition, or those that come from a
direct count, are called _________ numbers and have ___________
significant figures Answer: exact; infinite
◉ Scientists use dimensioal analysis when they want to convert from
one set of ___________ to another Answer: units
