INTRO TO CHEM
Finish the sentence: density is a ratio between ________ and _________.
What is Mass and Volume?
Finish the sentence: The Kinetic Molecular Theory of matter states that all particles of matter are in _________.
What is Motion?
OR
What is Constant Motion?
This subatomic particle has a neutral/no charge.
What is a neutron?
This is the Greek name for wavelength.
What is Lambda?
This number of electrons is held in the d orbital.
Which of the following is NOT a physical change?
Boiling
Burning
Cutting
Grinding
What is Burning?
This type of matter has rapid, constant, straight-line motion.
What is gas?
This is the location of the atom where protons and neutrons live.
What is the nucleus?
This is an arrangement of all electromagnetic waves by decreasing wavelength and increasing frequency.
What is the Electromagnetic Spectrum?
This rule states that electrons occupy positions of the lowest energy first.
What is the Aufbau Priciple?
This type of pure substance with a definite composition (meaning the molecules are always in the same ratio).
What is a compound?
This type of matter flows and experiences vapor pressure in closed systems.
What is liquid?
This model, proposed in 1926, mathematically describes the wave properties of electrons.
What is the Quantum Mechanical Model?
You must pass white light through this instrument to view the visible light color spectrum.
What is a prism?
This element has the configuration 1s2 2s2 2p4.
What is Oxygen?
This type of matter has a fixed composition, meaning it is composed of just one type of particle (atom or molecule).
What is a Pure Substance?
Finish the sentence: Heat of _________ is the amount of energy required to FREEZE one gram of substance at standard pressure and temperature.
What is Fusion?
This scientist proposed a model where electrons traveled around the nucleus in fixed orbits.
Who is Niels Bohr?
This constant has a value of 3 x 10^8 m/s.
What is c?
OR
What is the Speed of Light?
This rule states that electrons in the same sublevel occupy empty orbitals first before pairing up and that unpaired electrons have the same spin.
What is Hund's Rule?
___________ properties, such as color, texture, and density, do NOT depend on how much matter is present.
What is Intensive?
Condensation is an ______________ process because energy must be removed for the change to take place.
What is exothermic?
This law, proposed by Lavoisier in 1794 states, "Mass is neither created nor destroyed during ordinary chemical reactions or physical changes."
What is the Law of Conservation of Mass?
A pink glow occurred when Niels Bohr passed an electric current through a vacuum tube containing this type of gas.
What is Hydrogen?
Pauli's Exclusion Principle Each states that each orbital can hold two electrons with this orientation.
What is opposite spins?