Semmelweis entrance exam Chemistry Test Questions with
Verified Answers
The mole concept - - A method that allows Atomic mass is the same as - - Number of
the relative number of reactant particles involved protons and neutrons
in a chemical reaction to be known
Different types of chemical bonding - -
Avogadro's number - - number of metallic, covalent, ionic
representative particles in a mole, 6.02 X 10^23
What is covalent bonding and how does it work?
Basic structures of atoms - - There is a - - when atoms share one or more pairs of
nucleus in the center surrounded by an electron electrons. They have similar electronegativities
cloud or field
What is ionic bonding? - - when atoms
Quantum numbers - - Quantum numbers transfer electrons. Large difference in
describe values of conserved quantities in the electronegativity
dynamics of a quantum system. In the case of
electrons, the quantum numbers can be defined
as "the sets of numerical values which give Examples of ionic bonds - - NaCl
acceptable solutions to the Schrödinger wave Cs2O
equation for the hydrogen atom" MgO
NH4NO3
Common compounds - - Water (H2O),
table salt (NaCL); carbon dioxide (CO2); baking Examples of covalent bonds - - F2, O2, N2,
soda (NaHCO3); carbon monoxide (CO); sand or H2, CL2, HCL, H2O
glass (SiO2)
What is metallic bonding? - - the chemical
Periodic properties - - chemical or physical bonding that results from the attraction between
properties that vary among elements according metal atoms and the surrounding sea of electrons
to trends that repeat as atomic number increases
What is hydrogen bonding? - - Hydrogen
What are the periodic properties? - - bonding is the strongest intermolecular force. it
only happens when hydrogen is covalently
bonded to fluorine, nitrogen or oxygen because
Element (on periodic table) - - they're very electronegative and can pull the
bonding electrons away from the hydrogen.
Substances with hydrogen bonding have higher
Atomic number is the same as - - number melting and boiling points because of the extra
of protons energy needed to break the hydrogen bonds.
1/6
, Semmelweis entrance exam Chemistry Test Questions with
Verified Answers
What is a dipole-dipole force? - - The
attraction between the positive end of one polar
molecule and the negative end of another Lewis Structure methanol - -
What is a london dispersion force? - - Lewis Structure propanol - -
weak forces that result from temporary shifts in
the density of electrons in electron clouds
Lewis Structure ethers - -
What is the lewis structure? - - diagrams
that show the bonding between atoms of a Lewis Structure salicylic acid (phenol) - -
molecule and the lone pairs of electrons that may
exist in the molecule.
Lewis Structure acetic acid (carboxylic acid) -
-
Geometry of molecules - - The number of
atomic orbitals used to create a set of hybrid
orbitals equals the number of orbitals generated Lewis structure trimethylamine (amine) - -
by hybridization.
Types of solids - - crystalline and
Lewis structure of Ozone - - bent amorphous
Lewis structure of CO2 - - linear Crystalline solids - - solids that consist of
crystals
Lewis structure of H2O - - bent
Amorphous solids - - A solid made up of
particles that are not arranged in a regular
Lewis structure of Methane - - tetrahedral pattern
structure
Le chatelier's principle - - States that if a
Lewis structure of ammonia - - trigonal stress is applied to a system at equilibrium, the
pyramidal system shifts in the direction that relieves the
stress.
Lewis structure Ethene - -
Chemical equilibrium example - - H₂ (g) +
I₂ (g) ⇌ 2HI (g)
Lewis structure Ethane - - at any given time, H₂ & I₂ are combing while 2HI
2/6
Verified Answers
The mole concept - - A method that allows Atomic mass is the same as - - Number of
the relative number of reactant particles involved protons and neutrons
in a chemical reaction to be known
Different types of chemical bonding - -
Avogadro's number - - number of metallic, covalent, ionic
representative particles in a mole, 6.02 X 10^23
What is covalent bonding and how does it work?
Basic structures of atoms - - There is a - - when atoms share one or more pairs of
nucleus in the center surrounded by an electron electrons. They have similar electronegativities
cloud or field
What is ionic bonding? - - when atoms
Quantum numbers - - Quantum numbers transfer electrons. Large difference in
describe values of conserved quantities in the electronegativity
dynamics of a quantum system. In the case of
electrons, the quantum numbers can be defined
as "the sets of numerical values which give Examples of ionic bonds - - NaCl
acceptable solutions to the Schrödinger wave Cs2O
equation for the hydrogen atom" MgO
NH4NO3
Common compounds - - Water (H2O),
table salt (NaCL); carbon dioxide (CO2); baking Examples of covalent bonds - - F2, O2, N2,
soda (NaHCO3); carbon monoxide (CO); sand or H2, CL2, HCL, H2O
glass (SiO2)
What is metallic bonding? - - the chemical
Periodic properties - - chemical or physical bonding that results from the attraction between
properties that vary among elements according metal atoms and the surrounding sea of electrons
to trends that repeat as atomic number increases
What is hydrogen bonding? - - Hydrogen
What are the periodic properties? - - bonding is the strongest intermolecular force. it
only happens when hydrogen is covalently
bonded to fluorine, nitrogen or oxygen because
Element (on periodic table) - - they're very electronegative and can pull the
bonding electrons away from the hydrogen.
Substances with hydrogen bonding have higher
Atomic number is the same as - - number melting and boiling points because of the extra
of protons energy needed to break the hydrogen bonds.
1/6
, Semmelweis entrance exam Chemistry Test Questions with
Verified Answers
What is a dipole-dipole force? - - The
attraction between the positive end of one polar
molecule and the negative end of another Lewis Structure methanol - -
What is a london dispersion force? - - Lewis Structure propanol - -
weak forces that result from temporary shifts in
the density of electrons in electron clouds
Lewis Structure ethers - -
What is the lewis structure? - - diagrams
that show the bonding between atoms of a Lewis Structure salicylic acid (phenol) - -
molecule and the lone pairs of electrons that may
exist in the molecule.
Lewis Structure acetic acid (carboxylic acid) -
-
Geometry of molecules - - The number of
atomic orbitals used to create a set of hybrid
orbitals equals the number of orbitals generated Lewis structure trimethylamine (amine) - -
by hybridization.
Types of solids - - crystalline and
Lewis structure of Ozone - - bent amorphous
Lewis structure of CO2 - - linear Crystalline solids - - solids that consist of
crystals
Lewis structure of H2O - - bent
Amorphous solids - - A solid made up of
particles that are not arranged in a regular
Lewis structure of Methane - - tetrahedral pattern
structure
Le chatelier's principle - - States that if a
Lewis structure of ammonia - - trigonal stress is applied to a system at equilibrium, the
pyramidal system shifts in the direction that relieves the
stress.
Lewis structure Ethene - -
Chemical equilibrium example - - H₂ (g) +
I₂ (g) ⇌ 2HI (g)
Lewis structure Ethane - - at any given time, H₂ & I₂ are combing while 2HI
2/6
