CHE 310 Exam #1 || Questions and 100% Accurate Answers.
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Course
CHE 310
Institution
CHE 310
Organic chemistry correct answers Chemistry of compounds which contain carbon
Why are organic compounds central to the structure of living organisms? correct answers Organic compounds make up nucleic acids, amino acids, etc.
Compounds correct answers 2 or more elements chemically combined
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CHE 310 Exam #1 || Questions and 100% Accurate Answers.
Organic chemistry correct answers Chemistry of compounds which contain carbon
Why are organic compounds central to the structure of living organisms? correct answers
Organic compounds make up nucleic acids, amino acids, etc.
Compounds correct answers 2 or more elements chemically combined
Elements correct answers A molecule composed of one kind of atom; cannot be broken into
simpler units by chemical reactions.
Atoms correct answers Basic unit of matter which contains a nucleus and is surrounded by an
electron cloud
Atomic number correct answers The number of protons in the nucleus of an atom
Mass number correct answers The sum of the number of neutrons and protons in an atomic
nucleus
Isotopes correct answers Atoms of the same element that have different numbers of neutrons
Atomic mass correct answers The average mass of all the isotopes of an element
Why are electrons important to study? correct answers They determine chemical bonding
Schrodinger equation correct answers A mathematical equation of an electron in terms of a wave
function (dual character)
Heisenberg uncertainty principle correct answers Cannot determine position and velocity of an
electron at the same time: leads to probability distributions
Atomic orbitals correct answers Plots of wave functions in 3-dimensions to show where
electrons are likely to be found in an electron cloud
Principle quantum number correct answers Symbolized by n, indicates the main energy level
occupied by the electron (number of atomic orbitals available to be used)
electron configuration correct answers The arrangement of electrons in an atom
Aufbau principle correct answers An electron occupies the lowest-energy orbital that can receive
it
Pauli Exclusion Principle correct answers An atomic orbital may describe at most two electrons,
each with opposite spin direction
, Hund's rule correct answers 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
Degenerate orbitals correct answers Orbitals that have the same energy
What are the 2 classes of chemical bonding? correct answers Ionic and covalent
Ionic bonding correct answers Chemical bonding that results from the electrical attraction
between cations and anions
Covalent bonding correct answers Results from the sharing of electron pairs between two atoms
What element primarily undergoes covalent bonding? correct answers Carbon
What determines the type of bonding between two atoms? correct answers The difference in
electronegativity
Electronegativity correct answers A measure of the ability of an atom in a chemical compound to
attract electrons
Polar covalent bonds correct answers Bonds in which electrons are not shared equally between
atoms of different elements in a compound
Dipole moment correct answers A measure of the separation and magnitude of the positive and
negative charges in polar molecules
What element tends to be partial positive in organic chemistry? correct answers Carbon
When drawing Lewis structures, where should you start to fill the octet rule when you have
remaining electrons? correct answers Start with the halogens first, then move to the left of the
periodic table
Isomers correct answers Compounds with the same formula but different structures.
What are the 2 types of isomers? correct answers Constitutional and stereoisomers
Constitutional isomers correct answers Same molecular formula, different connectivity
Stereoisomers correct answers isomers with the same connectivity but a different orientation of
their atoms in space
What are the 3 different ways to write structural formulas? correct answers Dash, condensed, and
line-angle
Condensed structural formula correct answers Structural molecular formula showing the general
arrangement of atoms but without showing all the covalent bonds
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