1) which of the following have been associated with prolonged treatment with drugs
such as premarin or provera?
a.an increased risk of heart problemsc.both a and b
b.an increased risk of uterine cancerd.neither a nor b
2) which of the following compounds is used as an antacid?
a.nahco3
b.nano3
c.na3po4
d.na2so4
3) what is the correct name for bai2?
a.barium iodine
b.barium iodide
c.barium diiodide
d.monobarium diiodide
4) which of the following elements is most likely to lose electrons to become a cation?
a.ar
b.c
c.cl
d.fe
5) consider the periodic table given below.
which number represents an element classified as a noble gas?
a.1
b.2
c.3
d.4
e.5
f.6
g.7
h.more than one is a noble gas.
6) the following images shows some representations of some of the common
components of blood.
which type of cell is involved in the clotting mechanism?
a.erythrocytes
b.thrombocytes
c.leukocytes
d.agranular leukocytes
e.all are involved at some point in the process of clot formation.
7) what is the formula of the compound formed by calcium and fluorine?
a.caf
b.caf2
c.caf3
d.ca2f
8) which element is present in the largest amount (by mass) in the human body?
a.carbon
b.hydrogen
c.nitrogen
d.oxygen
9) which of the following statements, all of which were part of daltons atomic theory,
was later shown to be false?
a.all matter is made up of very tiny indivisible particles called atoms.
b.all atoms of the same element have the same chemical properties.
c.compounds are formed by the chemical combination of two or more elements.
d.a molecule is a tightly bound combination of two or more atoms that acts as a single
unit.
10) which of the following is expected to be true in the carbonate ion, co3
2-?
a.the carbon atom does not have an octet.
b.the carbon to oxygen bond lengths are the consistent with single bonds.
c.the carbon to oxygen bond lengths are the consistent with double bonds.
d.the carbon to oxygen bonds are shorter than single bonds but longer than double
bonds.
11) the atomic number of an atom is equal to which of the following?
a.the number of protons in the atom
b.the number of neutrons in the atom
c.the total number of protons and neutrons in the atom
d.the total number of protons, neutrons and electrons in the atom
12) which of the following is associated with a low leukocyte count?
a.anemiac.leukemia
b.polycythemiad.typhoid
13) which of the following give(s) the correct order of ionization energies?
a.li < na < k < rb
b.na < mg < p < cl
c.both a and b
d.neither a nor b
14) a molecule of hemoglobin is capable of binding how many molecules of co2?
a.1c.3
b.2d.4