ATOMIC STRUCTURE
CHEMICAL BONDING
ORGANIC
CHEMISTRY
PERIODIC TABLE
OXIDATION
& REDUCTION
100
The charge on the electron was discovered by
Mullikan
100
Which combination of atoms can form a polar covalent bond? H and H H and Br N and N Na and Br
H and Br
100
What element is present in all organic compounds?
carbon
100
A proton has approximately the same mass as
a neutron
100
Which type of reaction is occurring when a metal undergoes corrosion?
oxidation-reduction
200
According to Rutherford,
the electrons revolve around the nucleus
200
What is the name given to the electrons in the highest occupied energy level of an atom?
valence electrons
200
What is the name of the compound that has the molecular formula C6H6?
benzene
200
When electrons in an atom in an excited state fall to lower energy levels, energy is
released, only
200
Which half-reaction correctly represents reduction? Cr3+ + 3e- -> Cr(s) Cr3++ -> Cr(s) + 3e- Cr(s) -> Cr3+ + 3e- Cr(s) + 3e- -> Cr3+
Cr3+ + 3e- -> Cr(s)
300
The Atomic Theory was given by
John Dalton
300
What is the formula unit of aluminum oxide?
Al 2O3
300
During fractional distillation, hydrocarbons are separated according to their
boiling points
300
An ion with 5 protons, 6 neutrons, and a charge of 3+ has an atomic number of
5
300
What is the oxidation number of carbon in NaHCO3?
+4
400
In the Gold Foil experiment, most of the particles fired at the foil
passed through the foil
400
Which of these elements does not exist as a diatomic molecule? Ne H F I
Ne
400
The products of the fermentation of sugar are ethanol and
carbon dioxide
400
Which halogens are gases at STP? chlorine and fluorine chlorine and bromine iodine and fluorine iodine and bromine
chlorine and fluorine
400
Given the reaction: ZnO + X + heat -> Zn + XO Which element, represented by X, is used industrially to reduce the ZnO to Zn? Cu C SN Pb
C
500
Atoms of the same element that have differrent masses are called They contains different numbers of
Isotopes neutrons
500
What causes hydrogen bonding?
bonding of a covalently bonded hydrogen atom with an unshared electron pair
500
Draw the Lewis Structure of CH3OOH
500
The first ionization energy of an element is 736 kJ per mole of atoms. An atom of this element in the ground state has a total of how many valence electrons?
2
500
Which atoms forms an ion that would migrate toward the cathode in a electrolytic cell? F I Na C
Na
M
e
n
u