Check the clues and answers for your group. Answers stay hidden during live play until the host reveals them.
Round 1
Atomic Structure
$200
The number of protons in an atom of the isotope Nitrogen-15.
$400
The region of space where there is a 90% probability of finding an electron.
$600
The subatomic particle with a negative charge that occupies orbitals.
$800
The rule requiring electrons to occupy empty orbitals singly before pairing up.
$1000
The principle stating that electrons fill lower energy orbitals before higher energy ones.
Periodic Trends
$200
The tendency of an atom to attract a shared pair of electrons.
$400
The trend which increases as you move from top to bottom in a periodic group.
$600
The distance from the center of the nucleus to the outer boundary of the electron cloud.
$800
The trend that describes the amount of energy required to remove an electron from a gaseous atom.
$1000
This term describes the reduction in shielding caused by inner-shell electrons that allows valence electrons to experience a higher net attraction to the nucleus.
Bonding and Molecular Geometry
$200
The molecular geometry of a molecule with two bonding pairs and two lone pairs.
$400
The bond angle typically associated with a tetrahedral geometry.
$600
The theory that explains bonding using the overlap of atomic orbitals to form hybrid orbitals.
$800
The bond type characterized by the unequal sharing of electrons.
$1000
The force of attraction between the positive nucleus of one atom and the lone pair of a highly electronegative atom.
Stoichiometry
$200
The number of particles in one mole of a substance.
$400
The mass of one mole of a compound, typically expressed in grams per mole.
$600
The percentage of the mass of a specific element within a compound.
$800
The reactant that limits the amount of product formed in a reaction.
$1000
The ratio derived from the coefficients in a balanced chemical equation.
Thermodynamics
$200
The measure of the total heat content of a system.
$400
The unit of measurement used to quantify energy transfer.
$600
The state function that represents the degree of randomness or disorder.
$800
A reaction that absorbs heat from its surroundings.
$1000
The principle stating that the enthalpy change of a reaction is independent of the pathway.
Chemical Kinetics
$200
The change in concentration of a reactant or product over time.
$400
The minimum energy required for a chemical reaction to occur.
$600
A substance that increases the reaction rate by providing an alternative pathway.
$800
A proposed series of elementary steps that lead to the overall chemical reaction.
$1000
A mathematical expression relating the rate of a reaction to the concentration of reactants.
Double Jeopardy
Atomic Structure
$400
The series of lines produced by excited hydrogen atoms.
$800
The effect where light shined on metal causes electron emission.
$1200
The set of quantum numbers that describes the orientation of an orbital in space.
$1600
The mathematical equation relating wavelength to the momentum of a particle.
$2000
The principle asserting that position and momentum cannot be known simultaneously.
Periodic Trends
$400
The term for an ion that has the same electron configuration as a noble gas.
$800
The trend that governs the size of ions compared to their neutral parent atoms.
$1200
The decrease in atomic radius across a period due to increased proton count.
$1600
The reason for the drop in ionization energy between Group 2 and Group 13.
$2000
The charge experienced by an outer electron after shielding is considered.
Bonding and Molecular Geometry
$400
The bond formed by the side-to-side overlap of p-orbitals.
$800
The model used to predict geometry based on electron pair repulsion.
$1200
The overlapping of orbitals along the internuclear axis.
$1600
The theory describing bonding by the formation of molecular orbitals from atomic ones.
$2000
This phenomenon describes the delocalization of electrons within a molecule where the true electronic structure is represented by an average or hybrid of multiple valid Lewis diagrams.
Stoichiometry
$400
The empirical formula of a compound with 40% Carbon, 6.7% Hydrogen, and 53.3% Oxygen.
$800
The method of using chemical equations to relate quantities of different substances.
$1200
The procedure used to determine the concentration of a solution via reaction.
$1600
The law stating that mass is neither created nor destroyed in a chemical reaction.
$2000
The formula used to determine the number of moles from pressure, volume, and temperature.
Thermodynamics
$400
The sign of Gibbs Free Energy for a spontaneous process at constant temperature.
$800
The heat capacity of one mole of a substance.
$1200
The constant R value used when pressure is in Pascals.
$1600
The state where a system has zero entropy at absolute zero.
$2000
The quantity that accounts for both enthalpy and entropy to predict spontaneity.
Chemical Kinetics
$400
The exponent of the reactant concentration in a rate law.
$800
A reaction step that occurs in a single event.
$1200
The equation that relates the rate constant to activation energy and temperature.
$1600
The plot used to determine if a reaction is first-order.
$2000
The species that appears in the mechanism but not in the final equation.
Final Jeopardy · Equilibrium
This principle states that if a system at dynamic equilibrium is disturbed, the system will adjust to counteract the disturbance.
