CHEM 121 Final Exam with Complete questions and correct
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CHEM 121 FINAL EXAM! CHEM 121 Final Exam ACS Chem 1 Practice test Pa
107 terms 48 terms 110 terms Te
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Terms in this set (107)
kinetic molecular theory all matter is made of tiny particles that are constantly moving
fundamental particle 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 the fundamental particle of water is what?
atom the basic unit of a chemical element
, molecule two or more atoms (same or different) chemically bound
element fundamental particle contains only one kind of atom
compound two or more different kinds of atoms chemically bound
the same in a pure substance, all the fundamental particles are what?
solution mixture that is uniform throughout
density = mass / volume
atomic number number of protons in the nucleus, defines the element
mass number equal to the sum of protons and neutrons
isotope what results when you change the number of neutrons in an element?
atomic mass weighted average of the masses of the isotopes of an element, gives the mass
of one atom of the element
alkali metals group 1 on periodic table
alkali earth group 2 on periodic table
halogens group 17 on periodic table
properties of metals good conductors of heat and electricity, malleable, ductile, often shiny, tend to
lose electrons in chemical change
properties of non metals poor conductors of heat and electricity, not ductile, not malleable, gain
electrons in chemical change
avagadros number 6.022 x 10^23
ionic bond bond between a nonmetal and a metal
verified answers (detailed answers) already graded A+
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CHEM 121 FINAL EXAM! CHEM 121 Final Exam ACS Chem 1 Practice test Pa
107 terms 48 terms 110 terms Te
amarr1 Preview Sasha_Brown36 Preview isaac_harris2 Preview
Practice questions for this set
Learn 1 /7 Study with Learn
Terms in this set (107)
kinetic molecular theory all matter is made of tiny particles that are constantly moving
fundamental particle 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 the fundamental particle of water is what?
atom the basic unit of a chemical element
, molecule two or more atoms (same or different) chemically bound
element fundamental particle contains only one kind of atom
compound two or more different kinds of atoms chemically bound
the same in a pure substance, all the fundamental particles are what?
solution mixture that is uniform throughout
density = mass / volume
atomic number number of protons in the nucleus, defines the element
mass number equal to the sum of protons and neutrons
isotope what results when you change the number of neutrons in an element?
atomic mass weighted average of the masses of the isotopes of an element, gives the mass
of one atom of the element
alkali metals group 1 on periodic table
alkali earth group 2 on periodic table
halogens group 17 on periodic table
properties of metals good conductors of heat and electricity, malleable, ductile, often shiny, tend to
lose electrons in chemical change
properties of non metals poor conductors of heat and electricity, not ductile, not malleable, gain
electrons in chemical change
avagadros number 6.022 x 10^23
ionic bond bond between a nonmetal and a metal
