HONORS EXAM SCRIPT 2026 FULL SOLUTION
PRACTICE TESTED
◉ 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
, ◉ 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