Unit 0: The Periodic Table
Topic 1.1: States of Matter & Measurement
Topic 1.2: Energy & Gas Behavior
Topic 2.1: Types of Matter & Interactions
Topic 2.2: Chemical Bonding
100
What number is found on the periodic table that communicated exactly how many protons are in an atom of an element?
Atomic Number
100
What property of an element is determined by how strongly particles are attracted to each other and by how fast they are moving?
State of matter
100
What type of chemical reaction or physical change occurs when energy flows into the system from the surroundings?
Endothermic
100
Both elements and compounds fall under which category because they have a uniform and definite composition?
Pure Substance
100
What type of bonding occurs when atoms share pairs of electron to achieve a full octet?
Covalent Bonding
200
What are the specific names for the rows and columns on the periodic table?
Rows = Periods
Columns = Groups
200
What theory state that temperature is a measure of average kinetic energy of a sample of particles?
Kinetic Molecular Theory (KMT)
200
On which type of graph do the flat horizontal sections represent phase changes where temperature does not change?
Heating Curve
200
What separation method is used for heterogeneous mixtures where a solid is suspended in a liquid, often using paper or a porous barrier?
Filtration
200
What theory allows for the prediction of a molecule's 3D shape based on the idea that electron pairs want to stay as far apart as possible?
Valence shell Electron Pair Repulsion Theory (VSEPR)
300
Pictured here, what type of model of an atom uses "shells" to represent the organization of electrons?
Bohr Model
300
What type of units are created by 'doing math' to more simple metric units?
Derived Units
300
What gas variable is caused by the physical collisions of gas particles with the walls of their container?
Pressure
300
Unlike chemical bonds, what are the forces of attraction between different molecules or particles?
Intermolecular Forces (IMFs)
300
What term refers to a pair of valence electron that are not shared in a chemical bond?
lone pair
400
What is the electrostatic force of attraction between oppositely charged particles (like protons and electrons) or repulsion between like charges (protons and protons, or electrons and electrons)
Coulombic Attraction
400
What is used by scientists to communicate the level of certainty or precision in a measurement; more of them means a more certain measurement?
Significant Figures
400
What property is defined as the amount of energy required to raise exactly 1 gram of a substance by exactly 1oC?
Specific Heat
400
What three-word phrase explains why a polar solute will dissolve in a polar solvent, but not in a nonpolar one?
"Like dissolves Like"
400
What specific type of force between a positively charged cation and a negatively charged anion hold ionic compounds together?
Electrostatic Attraction
500
What trend generally increases as you move down a group because additional electron shells are being added to the atom?
Atomic Radius
500
A solution has a concentration of 0.05 moles/L. If you measure out 4.0 Liters of the solution, how many moles of solute did you measure? Show the dimensional analysis setup that cancels the Liters unit.
500
What phase change occurs @ normal pressure when the temperature of Solid CO2 is increased from -80oC to 0oC?
Sublimation
500
What would a particle level model for a Mixture: Two Elements look like?
A model showing two different types of unbonded atoms, with all particles mixed together
500
What two factors affect lattice energy? and which has a larger impact on the Force of attraction?
Magnitude of charge and distance between particles.
Magnitude has a larger impact on force of attraction