Chem 141 Final Exam 2025 Questions
and Answers
Physical Properties of matter - --CORRECT ANSWER--properties of matter that
may be observed or measured without changing its identity and composition
chemical properties of matter - --CORRECT ANSWER--properties of matter's to
change in identity or composition
intensive properties - --CORRECT ANSWER--do not change is you increase/
decrease the amount of substance
extensive properties - --CORRECT ANSWER--changes if you increase/ decrease
amount of substance
measurement - --CORRECT ANSWER--the process of emperical, objectivve
asignment of numbers to the properties of objects and events of the real world
units of measurement - --CORRECT ANSWER--standardized quantity of a
physical property
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, dimensional analysis - --CORRECT ANSWER--analyzing the relationship between
different physical quantities and tracking these dimensions as calculations are
preformed
what way did the cathode ray through an electric field bend towards and why? - --
CORRECT ANSWER--towards the positive plate, because it has negatively
charged particles
what is the smallest type of particle? - --CORRECT ANSWER--electron
what is the largest type of particle - --CORRECT ANSWER--neutrons
what are elements defined by? - --CORRECT ANSWER--the number of protons
metals - --CORRECT ANSWER--conduct electricity and heat
nonmetals - --CORRECT ANSWER--do not conduct electricity and heat
metalloids - --CORRECT ANSWER--have special set of metal and nonmetal
properties
Metals + nonmetals = - --CORRECT ANSWER--ionic compounds
nonmetals + nonmetals - --CORRECT ANSWER--molecular compounds
isotopes - --CORRECT ANSWER--atoms of the same element but different
numbers of neutrons
atomic weight equation - --CORRECT ANSWER--Σ(isotope mass) * (fractional
abundance)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
and Answers
Physical Properties of matter - --CORRECT ANSWER--properties of matter that
may be observed or measured without changing its identity and composition
chemical properties of matter - --CORRECT ANSWER--properties of matter's to
change in identity or composition
intensive properties - --CORRECT ANSWER--do not change is you increase/
decrease the amount of substance
extensive properties - --CORRECT ANSWER--changes if you increase/ decrease
amount of substance
measurement - --CORRECT ANSWER--the process of emperical, objectivve
asignment of numbers to the properties of objects and events of the real world
units of measurement - --CORRECT ANSWER--standardized quantity of a
physical property
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, dimensional analysis - --CORRECT ANSWER--analyzing the relationship between
different physical quantities and tracking these dimensions as calculations are
preformed
what way did the cathode ray through an electric field bend towards and why? - --
CORRECT ANSWER--towards the positive plate, because it has negatively
charged particles
what is the smallest type of particle? - --CORRECT ANSWER--electron
what is the largest type of particle - --CORRECT ANSWER--neutrons
what are elements defined by? - --CORRECT ANSWER--the number of protons
metals - --CORRECT ANSWER--conduct electricity and heat
nonmetals - --CORRECT ANSWER--do not conduct electricity and heat
metalloids - --CORRECT ANSWER--have special set of metal and nonmetal
properties
Metals + nonmetals = - --CORRECT ANSWER--ionic compounds
nonmetals + nonmetals - --CORRECT ANSWER--molecular compounds
isotopes - --CORRECT ANSWER--atoms of the same element but different
numbers of neutrons
atomic weight equation - --CORRECT ANSWER--Σ(isotope mass) * (fractional
abundance)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
