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WorksheetsReleased Chem Exam Part I
Total questions: 20
Worksheet time: 10mins
Which isotope has the greatest number of protons?
Pa-238
B U-240
Np-238
Pu-239
4
6
11
16
What color of light does a hydrogen atom emit when an electron transitions from the n=6 energy level to the n=2 energy level?
orange
yellow
blue
violet
alpha particle
beta particle
photon
neutron
2+
1+
2–
6–
How many electrons are in the outermost energy level of a neutral carbon atom?
2
4
6
8
The compound sodium chloride is placed in water and separates into ions. What are the correct names for these ions?
The chloride and sodium ions are cations.
The chloride and sodium ions are anions.
The sodium ion is the anion, and the chloride ion is the cation.
The sodium ion is the cation, and the chloride ion is the anion.
Which element will form covalent bonds with chlorine?
carbon
aluminum
magnesium
potassium
Which type of bonding or intermolecular forces is/are weakest?
London dispersion forces
hydrogen bonding
dipole-dipole forces
covalent bonding
What is the chemical formula for chromium(III) oxide?
Both solids contain only ionic bonds.
Both solids contain only covalent bonds.
Solid X contains only covalent bonds, and Solid Y contains only ionic bonds.
Solid X contains only ionic bonds, and Solid Y contains only covalent bonds.
fluorocobalt
cobalt trifluoride
cobalt(III) fluoride
fluorine(III) cobalt
Which statement best compares how bond strengths affect the physical properties of iron and lead?
Iron has a higher melting point because the bonds in iron are stronger.
Iron has a higher melting point because the bonds in iron are weaker
Lead has a higher density because the bonds in lead are stronger.
Lead has a higher density because the bonds in lead are weaker.
How is copper (Cu) classified based on its location on the periodic table?
a nonmetal
an alkaline earth metal
a transition metal
an alkali metal
Element 1, Element 2, Element 3
Element 1, Element 3, Element 2
Element 2, Element 1, Element 3
Element 2, Element 3, Element 1
Which three elements are arranged according to increasing electronegativity values?
N, C, B
N, P, As
N, O, F
F, O, N
Which group of elements is arranged in order of increasing atomic radii?
O, S, Se, Te
Fe, Ni, Ag, Au
Rb, K, Na, Li
Y, Zr, Nb, Mo
Which statement describes equilibrium between liquid water and water vapor?
The rate of vaporization equals the rate of condensation.
The rate of vaporization is greater than the rate of condensation
The rate of vaporization equals the rate of sublimation.
The rate of vaporization is greater than the rate of sublimation.
A boiling liquid is in equilibrium with its vapor.
A subliming solid is in equilibrium with its vapor.
C A freezing liquid is in equilibrium with its solid.
A melting solid is in equilibrium with its liquid.
A sample of metal has a mass of 5.2 g and absorbs 20.0 J of energy as it is heated from 30.0°C to 40.0°C. What is the identity of the metal?
iron
gold
copper
magnesium
