Covalent Bonding
The two electron dot structures for ozone are examples of
What are resonance structures
Density is the ratio of what
What is mass/volume
The modern description of the electrons in atoms...came from the mathematical solutions to the Schrödinger equation.
What is quantum mechanical model
A mixture in which the composition is not uniform throughout is
What is a heterogeneous mixture
The...of a compound gives the lowest whole-number ratio of the atoms or moles of the elements in a compound
What is empirical formula
In covalent bonds, electron sharing usually occurs so that atoms attain the electron configurations of
What are noble gases
The abbreviated SI stands for what
What is International System of Units
A quantum mechanical property of electrons and may be thought of as clockwise or counterclockwise
What is spin
Is used to describe any part of a sample with uniform composition and properties
What is a phase
The term...refers to the species present in a substance, usually atoms, molecules, or formula units.
What is representative particle
Two atoms held together by sharing one pair of electrons are joined by
What is a single covalent bond
How to calculate percent error
What is Percent error = |error|/accepted value X 100%
According to...electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible.
What is Hund's rule
During a...a liquid is boiled to produce a vapor that is then condensed into a liquid
What is distillation
How many moles is 1.50 X 1023 molecules of NH3
What is 0.249 mol of NH3
Several atomic orbitals mix to form the same total number of equivalent hybrid orbitals.
What is hybridization
A common non-SI unit of energy is
What is calorie (cal)
The wavelengths of these spectral lines are characteristic of the element, and they make up the
What is atomic emission spectrum
Is a property that depends on the amount of matter in a sample
What is extensive property
What information can you obtain from an empirical formula
Shows the lowest whole-number ratio of the atoms of the elements in a compound
When the atoms in the bond pull equally, the bonding electrons are shared equally, and each bond formed is
What is a nonpolar covalent bond.
(7.2 X 10-4)/(1.8 X 103) =
What is 4.0 X 10-7
Electrons are ejected when light shines on a metal
What is photoelectric effect
Name two methods that can be used to break down compounds into simpler substances
What is applying heat and electricity
Determine the percent composition of the compound that forms when 222.6 g N combines completely with 77.4 g O.
What is N = 74.20% O = 25.80%