Chem 121 Final Exam Questions & Answers _ 100- Verified solutions
_Questions with Correct Answers 2026 latest update!!
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
isotope - (ANSWER)what results when you change the number of neutrons in an element?
, Chem 121 Final Exam Questions & Answers _ 100- Verified solutions
_Questions with Correct Answers 2026 latest update!!
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
naming covalent compounds - (ANSWER)first element is given its element name, second suffix replaced
by "ide", USE GREEK PREFIXES
naming ionic compounds - (ANSWER)name the metal, if the metal has an uncommon charge, indicate
the charge with roman numerals, change nonmetal suffix to "ide", if polyatomic ion just name them
_Questions with Correct Answers 2026 latest update!!
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
isotope - (ANSWER)what results when you change the number of neutrons in an element?
, Chem 121 Final Exam Questions & Answers _ 100- Verified solutions
_Questions with Correct Answers 2026 latest update!!
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
naming covalent compounds - (ANSWER)first element is given its element name, second suffix replaced
by "ide", USE GREEK PREFIXES
naming ionic compounds - (ANSWER)name the metal, if the metal has an uncommon charge, indicate
the charge with roman numerals, change nonmetal suffix to "ide", if polyatomic ion just name them
