1) what is the correct systematic name for feco3?
a.ferric carbonate
b.ferrous carbonate
c.iron(i) carbonate
d.iron(ii) carbonate
2) the toxic gas hydrogen cyanide has the formula hcn. how many nonbonding electrons
must be shown in the lewis structure of hydrogen cyanide?
a.2
b.6
c.10
d.12
3) examine the following diagram of a kidney nephron and the surrounding circulatory
system.
blood enters the capsule and glomerulus. which of the following components of the
blood if passed to the collecting tubules may indicative of disease?
a.glucose
b.protein
c.ketone bodies
d.all of these may indicate of an abnormality.
4) consider the periodic table given below.
of the elements numbered, which number represents the halogen with highest melting
point?
a.1
b.2
c.3
d.4
e.5
f.6
g.7
h.there is only one halogen numbered.
5) examine the following diagram of a kidney nephron and the surrounding circulatory
system.
blood enters the capsule and glomerulus. which of the following components of the
blood will eventually pass to the collecting tubule?
a.urea
b.creatine
c.hippuric acid
d.inorganic ions such as na+ and so42
e.all of the above components pass to the collecting tubule.
6) which of the following elements is named for a city?
a.b
b.be
c.bi
d.bk
7) which of the following circulates throughout the body to deliver nutrients and
remove wastes?
a.extracellular fluid
b.interstitial fluid
c.plasma
d.synovial fluid
8) ammonium nitrate is a component of both fertilizers and explosives. ammonium
nitrate has nitrogen, hydrogen and oxygen atoms in the ratio 2:4:3. what is the correct
formula for ammonium nitrate?
a.n4h8o6
b.n2h4o3
c.n1h2o1.5
d.all of these
9) which of the following elements is named for a person?
a.er
b.fr
c.os
d.sg
10) in which portion of a nephron is lost hco3 replaced?
a.the distal tubulec.the glomerulus
b.henle’s loopd.the proximal tubule
11) sodium bicarbonate has sodium, hydrogen, carbon and oxygen atoms in the ratio
1:1:1:3. what is the correct formula for sodium bicarbonate?
a.nabico3
b.nahco3
c.sohco3
d.none of these
12) how many valence electrons are there in an oxygen atom?
a.2
b.4
c.6
d.8
13) how many electrons can be accommodated in the 4p subshell?
a.4
b.6
c.8
d.18
14) which of the following has the lowest ionization energy?
a.br
b.cl
c.f
d.i