UCF CHEMISTRY CERTIFICATION
EVALUATION STUDY GUIDE
QUESTIONS AND ANSWERS
◉ Temperature scale conversions
Answer: Celsius to Kelvin: K=C+273.15
Kelvin to Celsius: C=K-273.15
Fahrenheit to Celsius: C=(F-32)x 5/9
Celsius to Fahrenheit: F=C(9/5)+32
Fahrenheit to Kelvin: K=(F-32) x 5/9 +273.15
Kelvin to Fahrenheit: F=(K-273.15) x 9/5 +32
◉ Plotting data and linear equations
Answer:
◉ Nomenclature: ionic compounds and acids
Answer: Diatomic Ions: Composed of multiple molecules of the same
element; there are 7 elements (halogens and gases)
Gases: Hydrogen (H2), Nitrogen (N2), Oxygen (O2)
Halogens: Fluorine (F2), Chlorine (Cl2), Iodine (I2), Bromine (Br2)
,Polyatomic Ions: A charged chemical species composed of more than
one element
ex: Hydroxide ions (H+) are acidic, and increase the acidity of
substances as the H+ concentration increases. Hydroxyl ions (OH-)
are basic, and increase the basicness of substances as the OH-
concentration increases.
◉ Homonuclear molecules, or homonuclear species
Answer: Molecules composed of only 1 element: consists of diatomic
molecules
◉ Heteronuclear molecules
Answer: Molecules composed of more than one element.
ex: Carbon monoxide (CO), Hydrogen Fluoride (HF)
◉ Atomic and mass numbers, and electrons, protons, and neutrons
Answer: Atomic Number: The number of protons in the nucleus of
the atom; never changes; ex: Carbon = 6
Mass Number: The number of neutrons plus the number of protons
in an atom. Electrons contribute virtually nothing of value to atomic
mass number.
◉ Symbols of isotopes
, Answer: Can be defined in standard (ex: Carbon-14) or AZE
notation, where A is the mass number, Z is the atomic number, and E
is the element symbol.
◉ Chemical Change
Answer: Any change that results in the formation of new chemical
substances.
At the molecular level, chemical change involves making or breaking
of bonds between atoms, resulting in the formation of a new
substance.
ex: rusting, burning, formation of a precipitate, gas forming, etc.
◉ Physical Change
Answer: A change that rearranges molecules but doesn't affect
internal chemical structure, and no new substances are formed.
ex: whipping eggs, boiling water, dicing potatoes, etc.
◉ The Periodic Table: Metals, nonmetals, main group elements,
metalloids, transition elements, and ions
Answer: Multiple cards
◉ What is the S orbital?
Answer: They can fit 2 electrons
Hydrogen and Helium
EVALUATION STUDY GUIDE
QUESTIONS AND ANSWERS
◉ Temperature scale conversions
Answer: Celsius to Kelvin: K=C+273.15
Kelvin to Celsius: C=K-273.15
Fahrenheit to Celsius: C=(F-32)x 5/9
Celsius to Fahrenheit: F=C(9/5)+32
Fahrenheit to Kelvin: K=(F-32) x 5/9 +273.15
Kelvin to Fahrenheit: F=(K-273.15) x 9/5 +32
◉ Plotting data and linear equations
Answer:
◉ Nomenclature: ionic compounds and acids
Answer: Diatomic Ions: Composed of multiple molecules of the same
element; there are 7 elements (halogens and gases)
Gases: Hydrogen (H2), Nitrogen (N2), Oxygen (O2)
Halogens: Fluorine (F2), Chlorine (Cl2), Iodine (I2), Bromine (Br2)
,Polyatomic Ions: A charged chemical species composed of more than
one element
ex: Hydroxide ions (H+) are acidic, and increase the acidity of
substances as the H+ concentration increases. Hydroxyl ions (OH-)
are basic, and increase the basicness of substances as the OH-
concentration increases.
◉ Homonuclear molecules, or homonuclear species
Answer: Molecules composed of only 1 element: consists of diatomic
molecules
◉ Heteronuclear molecules
Answer: Molecules composed of more than one element.
ex: Carbon monoxide (CO), Hydrogen Fluoride (HF)
◉ Atomic and mass numbers, and electrons, protons, and neutrons
Answer: Atomic Number: The number of protons in the nucleus of
the atom; never changes; ex: Carbon = 6
Mass Number: The number of neutrons plus the number of protons
in an atom. Electrons contribute virtually nothing of value to atomic
mass number.
◉ Symbols of isotopes
, Answer: Can be defined in standard (ex: Carbon-14) or AZE
notation, where A is the mass number, Z is the atomic number, and E
is the element symbol.
◉ Chemical Change
Answer: Any change that results in the formation of new chemical
substances.
At the molecular level, chemical change involves making or breaking
of bonds between atoms, resulting in the formation of a new
substance.
ex: rusting, burning, formation of a precipitate, gas forming, etc.
◉ Physical Change
Answer: A change that rearranges molecules but doesn't affect
internal chemical structure, and no new substances are formed.
ex: whipping eggs, boiling water, dicing potatoes, etc.
◉ The Periodic Table: Metals, nonmetals, main group elements,
metalloids, transition elements, and ions
Answer: Multiple cards
◉ What is the S orbital?
Answer: They can fit 2 electrons
Hydrogen and Helium
