Atomic Structure
An atom has 15 protons, 15 electrons, and 11 neutrons. What is its mass number?
15+11=26
This state function measures the disorder or randomness of a system and tends to increase in spontaneous process.
Entropy
These intermolecular forces occur when hydrogen is bonded to nitrogen, oxygen, or fluorine
Hydrogen Bonding
This type of chemical reaction involves the transfer of electrons between species
redox reactions
This factor describes how the the reaction rate changes when the concentration of a reactant changes
Reaction order
Which subatomic particles are located in the nucleus of an atom?
The protons and neutrons
This equation determines whether a reaction is spontaneous at constant temperature and pressure
Gibbs Free Energy Equation
Type of intermolecular force exists between all molecules and becomes stronger as a molar mass increases
London dispersion forces
In this kind of reaction, two reactants combine to form a single product
Synthesis reaction
This theory states that reactant particles must collide with sufficient energy and proper orientation
Collision theory
The atom that contains only one electron in the highest occupied energy sublevel
Ga
This thermodynamic quantity represents the heat absorbed or released at constant pressure
Enthalpy
These forces occur between polar molecules due to attractions between partial positive and partial negative charges
Dipole-dipole forces
This principle states that increasing the concentration of reactants will shift equilibrium toward the products
Le Chatelier Principle
For a first-order reaction, this graph produces a straight line
ln[A] X time
Which of the following is the ground-state electron configurations of the F— ion ?
A 1s2 2s2 2p4
B 1s2 2s2 2p5
C 1s2 2s2 2p6
D 1s2 2s2 2p6 3s2 3p6
C: 1s2 2s2 2p6
When the enthalpy change is negative and the entropy change is positive delta G will be
Positive
A liquid with stronger intermolecular forces will generally have this higher physical property
Boiling point
The substance that increases the rate of a reaction without being consumed is called..
A catalyst
This quantity is defined as the time required for the concentration of a reactant to decrease to half its original value
Half-life
How many unpaired electrons are there in an atom of tin in its ground state
2
This law states that energy cannot be created or destroyed, only transferred or transformed
This property decreases when intermolecular forces between molecules become stronger because fewer molecules can escape into the gas phase
Vapor pressure
This term describes the minimum energy particles must have for a successful collision to occur
Activation energy
Increasing temperature increases reaction rate because it increases the number of molecules with energy greater than this quantity
Activation energy