Honors Chemistry Final Exam 2025
Questions and Answers
law of conservation of mass - ANSWER-the law that states that mass cannot be
created or destroyed in ordinary chemical and physical changes
law of definate proportions - ANSWER-the law that states a chemical compound
always contains the same elements in exactly the same proportions by weight or
mass
law of multiple proportions - ANSWER-the law that states that when two
elements combine to form two or more compounds, the mass of one element that
combines with a given mass of the other is in the ratio of small whole numbers
atom - ANSWER-the smallest component of an element having the chemical
properties of the element
nuclear forces - ANSWER-the interaction that binds protons and neutrons,
protons and protons, and neutrons and neutrons together in a nucleus
atomic number - ANSWER-the number of protons in the nucleus of an atom
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, isotope - ANSWER-an atom that has the same number of protons as other atoms
of the same element do but that has a different number of neutrons
mass number - ANSWER-the sum of the number of neutrons and protons that
make up the nucleus of an atom
nuclide - ANSWER-An atom that is identified by the number of protons and
neutrons in its nucleus
atomic mass unit - ANSWER-a unit of mass that describes the mass of an atom or
molecule
average atomic mass - ANSWER-weighted average of the atomic masses for the
isotopes of an element
mole - ANSWER-the SI base unit used to measure the amount of a substance
whose number of particles is the same as the number of atoms of carbon in exactly
12g of carbon-12
Avogadro's number - ANSWER-used to find molecules. the number of atoms or
molecules in one mole (6.022 x 10^23)
molar mass - ANSWER-the mass in grams of 1 mol of a substance
Electromagnetic radiation - ANSWER-A form of energy that exhibits wavelike
behavior as it travels through space
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Questions and Answers
law of conservation of mass - ANSWER-the law that states that mass cannot be
created or destroyed in ordinary chemical and physical changes
law of definate proportions - ANSWER-the law that states a chemical compound
always contains the same elements in exactly the same proportions by weight or
mass
law of multiple proportions - ANSWER-the law that states that when two
elements combine to form two or more compounds, the mass of one element that
combines with a given mass of the other is in the ratio of small whole numbers
atom - ANSWER-the smallest component of an element having the chemical
properties of the element
nuclear forces - ANSWER-the interaction that binds protons and neutrons,
protons and protons, and neutrons and neutrons together in a nucleus
atomic number - ANSWER-the number of protons in the nucleus of an atom
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, isotope - ANSWER-an atom that has the same number of protons as other atoms
of the same element do but that has a different number of neutrons
mass number - ANSWER-the sum of the number of neutrons and protons that
make up the nucleus of an atom
nuclide - ANSWER-An atom that is identified by the number of protons and
neutrons in its nucleus
atomic mass unit - ANSWER-a unit of mass that describes the mass of an atom or
molecule
average atomic mass - ANSWER-weighted average of the atomic masses for the
isotopes of an element
mole - ANSWER-the SI base unit used to measure the amount of a substance
whose number of particles is the same as the number of atoms of carbon in exactly
12g of carbon-12
Avogadro's number - ANSWER-used to find molecules. the number of atoms or
molecules in one mole (6.022 x 10^23)
molar mass - ANSWER-the mass in grams of 1 mol of a substance
Electromagnetic radiation - ANSWER-A form of energy that exhibits wavelike
behavior as it travels through space
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
