1) which of the following is the most abundant protein in blood plasma?
a.albuminc.globulin
b.fibrinogend.hemoglobin
2) a student is attempting to draw several resonance structures for a species. which of
the following is allowed?
a.change the connectivities of the nuclei.
b.move electrons from one location to another.
c.both a and b
d.neither a nor b
3) which of the following is the correct formula for dinitrogen trioxide?
a.o2n3
b.o3n2
c.n2o3
d.n3o2
4) which of the following is true of ionization energies as one moves left to right across
a period of the periodic table?
a.they consistently decrease.
b.they consistently increase.
c.they generally decrease, but there are some exceptions.
d.they generally increase, but there are some exceptions.
5) how many electrons can be accommodated in the 2d subshell?
a.2
b.5
c.10
d.none, there is no 2d subshell.
6) which of the following contains only nonmetals?
a.c, si, ge, sn
b.p, as, sb, bi
c.f, cl, br, i
d.none of these
7) which of the following occurs when a sulfur atom is converted to s2?
a.the sulfur atom gains two electrons and loses two protons.
b.the sulfur atom gains two electrons.
c.the sulfur atom loses two electrons and two protons.
d.the sulfur loses two electrons.
8) the following represents carbonic acid, an important part of the buffer system in
blood.
how many nonbonding electrons are present in this structure?
a.3
b.6
c.12
d.the are no nonbonding electrons.
9) examine the following image representing the structure of a compound.
if the smaller spheres represented cu+ and the larger spheres cl, what would be the
correct name of this compound?
a.copper monochloride
b.copper(i) chloride
c.copper(ii) chloride
d.cuprous chloride
e.cupric chloride
f.either b or d
g.either c or d
10) for which types of elements do we sometimes use the “ous/ic” system in naming
ions?
a.alkali metals
b.halogens
c.noble gases
d.transition metals
11) consider the following lewis structure.
which of the following correctly characterizes this compound?
a.all atoms obey the octet rule.
b.40 valence electrons are represented.
c.the central atom is from period 4.
d.contains a metalloid and a nonmetal.
e.none of these are true of this compound.
12) which of the following molecules is(are) polar?
a.ch2cl-ch2cl
b.ch3-chcl2
c.both a and b
d.neither a nor b
13) which of the following is administered to patients to prevent blood clotting?
a.sodium acetatec.sodium citrate
b.sodium carbonated.sodium phosphate
14) consider the periodic table given below.
which number represents an element classified as a metalloid?
a.1
b.2
c.3
d.4
e.5
f.6
g.7
h.none of these
15) in what form is lithium administered when it is used as a drug in the treatment of
manic depression?
a.li–
b.li
c.li+
d.li2+
16) one of the postulates of daltons theory was incorrect. which of the following best
describes the effect of the incorrect postulate?
a.since one postulate was incorrect the theory must be discarded.
b.the theory can still be used because the erroneous postulate does not have any effect
on the physical properties of the elements.
c.the theory can still be used because the erroneous postulate does not have any effect
on the chemical properties of the elements.
d.the theory can still be used because the erroneous postulate does not have any effect
on either the chemical or physical properties of the elements.
17) which columns o the periodic table is commonly called the halogens?
a.1a
b.4a
c.7a
d.8a
18) which of the following enable us characterize a compound by a specific chemical
formula?
a.law of conservation of energy
b.law of conservation of mass
c.law of constant composition
d.all of the above
19) which of the following contains only metals?
a.ag, as, ba, ca
b.ag, au, pb, rb
c.as, ge, si, te
d.none of these