CHEM 1030 FINAL EXAM BROERING SECTION
2026 EXAM PREPARATION PACK KEY
STOICHIOMETRY ATOMIC STRUCTURE AND
THERMOCHEMISTRY WITH SAMPLE
QUESTIONS
◉ avogadro's principle. Answer: under similar pressure and temps,
equal volumes of gases contain the same number of molecules
◉ STP. Answer: molar volume= 22.4 L
temp= 273 K
pressure= 1 atm
◉ volume ratio. Answer: equal to the coefficients and reactants and
products
◉ bond length. Answer: decreases as the number of shared electron
pairs increases; triple bonds require most energy
◉ metals. Answer: tend to lose electrons
◉ nonmetals. Answer: tend to gain electrons
, ◉ Hund's rule. Answer: single electron with the same spin must
occupy each energy sub shell before additional electrons with
opposite spins can occupy the same sub shell
◉ Pauli exclusion principle. Answer: max of 2 electrons may occupy
a single orbital but only if the electrons have different spinsn
◉ radioisotopes. Answer: emit radiation to attain a more stable
arrangement through radioactive decay
◉ alpha particle. Answer: helium atom is produced and represented
by 4/2 He; postively charged particles
◉ beta particle. Answer: electron produced represented by 0/-1 e;
negatively charged
◉ gamma rays. Answer: neutrally charged
◉ units of specific heat. Answer: J/g deg C
◉ calorimeter. Answer: insulated device used for measuring the
amount of heat absorbed/released
2026 EXAM PREPARATION PACK KEY
STOICHIOMETRY ATOMIC STRUCTURE AND
THERMOCHEMISTRY WITH SAMPLE
QUESTIONS
◉ avogadro's principle. Answer: under similar pressure and temps,
equal volumes of gases contain the same number of molecules
◉ STP. Answer: molar volume= 22.4 L
temp= 273 K
pressure= 1 atm
◉ volume ratio. Answer: equal to the coefficients and reactants and
products
◉ bond length. Answer: decreases as the number of shared electron
pairs increases; triple bonds require most energy
◉ metals. Answer: tend to lose electrons
◉ nonmetals. Answer: tend to gain electrons
, ◉ Hund's rule. Answer: single electron with the same spin must
occupy each energy sub shell before additional electrons with
opposite spins can occupy the same sub shell
◉ Pauli exclusion principle. Answer: max of 2 electrons may occupy
a single orbital but only if the electrons have different spinsn
◉ radioisotopes. Answer: emit radiation to attain a more stable
arrangement through radioactive decay
◉ alpha particle. Answer: helium atom is produced and represented
by 4/2 He; postively charged particles
◉ beta particle. Answer: electron produced represented by 0/-1 e;
negatively charged
◉ gamma rays. Answer: neutrally charged
◉ units of specific heat. Answer: J/g deg C
◉ calorimeter. Answer: insulated device used for measuring the
amount of heat absorbed/released
