CHEM 121 FINAL EXAM || 2026 (Actual Exam) Questions with verified
Answers | FREQUENTLY MOST TESTED QUESTIONS AND VERIFIED
SOLUTIONS
kinetic molecular theory - (answer)all matter is made of tiny particles that are constantly moving
fundamental particle - (answer)take a macroscopic object and divide it repeatedly. Eventually you have
a particle, which, if further divided is no longer the original substance. This smallest piece of the
substance is called...
h2o molecule - (answer)the fundamental particle of water is what?
atom - (answer)the basic unit of a chemical element
molecule - (answer)two or more atoms (same or different) chemically bound
element - (answer)fundamental particle contains only one kind of atom
compound - (answer)two or more different kinds of atoms chemically bound
the same - (answer)in a pure substance, all the fundamental particles are what?
solution - (answer)mixture that is uniform throughout
density - (answer)= mass / volume
atomic number - (answer)number of protons in the nucleus, defines the element
mass number - (answer)equal to the sum of protons and neutrons
, CHEM 121 FINAL EXAM || 2026 (Actual Exam) Questions with verified
Answers | FREQUENTLY MOST TESTED QUESTIONS AND VERIFIED
SOLUTIONS
isotope - (answer)what results when you change the number of neutrons in an element?
atomic mass - (answer)weighted average of the masses of the isotopes of an element, gives the mass of
one atom of the element
alkali metals - (answer)group 1 on periodic table
alkali earth - (answer)group 2 on periodic table
halogens - (answer)group 17 on periodic table
properties of metals - (answer)good conductors of heat and electricity, malleable, ductile, often shiny,
tend to lose electrons in chemical change
properties of non metals - (answer)poor conductors of heat and electricity, not ductile, not malleable,
gain electrons in chemical change
avagadros number - (answer)6.022 x 10^23
ionic bond - (answer)bond between a nonmetal and a metal
covalent bond - (answer)bond between 2 or more nonmetals
Answers | FREQUENTLY MOST TESTED QUESTIONS AND VERIFIED
SOLUTIONS
kinetic molecular theory - (answer)all matter is made of tiny particles that are constantly moving
fundamental particle - (answer)take a macroscopic object and divide it repeatedly. Eventually you have
a particle, which, if further divided is no longer the original substance. This smallest piece of the
substance is called...
h2o molecule - (answer)the fundamental particle of water is what?
atom - (answer)the basic unit of a chemical element
molecule - (answer)two or more atoms (same or different) chemically bound
element - (answer)fundamental particle contains only one kind of atom
compound - (answer)two or more different kinds of atoms chemically bound
the same - (answer)in a pure substance, all the fundamental particles are what?
solution - (answer)mixture that is uniform throughout
density - (answer)= mass / volume
atomic number - (answer)number of protons in the nucleus, defines the element
mass number - (answer)equal to the sum of protons and neutrons
, CHEM 121 FINAL EXAM || 2026 (Actual Exam) Questions with verified
Answers | FREQUENTLY MOST TESTED QUESTIONS AND VERIFIED
SOLUTIONS
isotope - (answer)what results when you change the number of neutrons in an element?
atomic mass - (answer)weighted average of the masses of the isotopes of an element, gives the mass of
one atom of the element
alkali metals - (answer)group 1 on periodic table
alkali earth - (answer)group 2 on periodic table
halogens - (answer)group 17 on periodic table
properties of metals - (answer)good conductors of heat and electricity, malleable, ductile, often shiny,
tend to lose electrons in chemical change
properties of non metals - (answer)poor conductors of heat and electricity, not ductile, not malleable,
gain electrons in chemical change
avagadros number - (answer)6.022 x 10^23
ionic bond - (answer)bond between a nonmetal and a metal
covalent bond - (answer)bond between 2 or more nonmetals
