CHEM 104 ACTUAL TEST SCRIPT WITH
SOLVED QUESTIONS AND VERIFIED
ANSWERS
●● a homogeneous mixture consists of 12% ethanol, 28% methanol, and
60% water. what is the solvent? water, methanol, ethanol, or ethanol +
methanol
Answer: water
●● in a solution, the solute is:
Answer: the substance that is dissolved
●● example of colloid: grape juice, homogenized milk, blood, or kool-
aid.
Answer: homogenized milk
●● example of suspension: blood, homogenized milk, apple juice, or
mayo.
Answer: blood
●● unknown liquid that is insoluble in water but not in benzene (an
aromatic hydrocarbon solvent). what type of molecule is unknown?
polar, nonpolar, neither polar or non polar, or both polar and non polar
,Answer: nonpolar
●● solubility of _________ in water decreases as temperature increases.
liquids, solids, or gases?
Answer: gases
●● which compound will be most soluble in hexane?
CH3CH2OH CH3OH
CH3CH2CH2OH
Answer: CH3CH2CH2OH
●● water solution of sodium chloride is a good conductor of electricity.
due to this property, table salt is classified as a(n):
weak electrolyte, strong electrolyte, non-electrolyte, or semi-electrolyte
Answer: strong electrolyte
●● example of a weak electrolyte
MgCl2, HC2H3O2, HNO3, or KOH
Answer: HC2H3O2
,●● in order to prevent the process off either crenation or hemolysis with
red blood cells an intravenous solution concentration should
be__________ to the concentration of blood.
hypotonic, hypertonic, isotonic, or all of the above.
Answer: isotonic
●● the process of crenation occurs when the concentration outside a cell
is ______ and is said to be _________.
lower in concentration; hypotonic
higher in concentration; hypertonic
higher in concentration; hypotonic
higher in concentration; hypertonic
none of these
Answer: higher in concentration; hypertonic
●● air can be classified to be a solution of several gases. which gas is
considered to be the solvent?
O2, N2, CO2, or H2O
Answer: N2
, ●● arrange the terms solution, suspension, and colloid in order of
increasing size of the dispersed particles (smallest to largest).
solution < suspension < colloid
solution < colloid < suspension
suspension < solution < colloid
colloid < solution < suspension
Answer: solution < colloid < suspension
●● identify the type of transport that will occur for the sodium ions that
requires energy for transport
passive diffusion
active transport
facilitated diffusion
all of the above
none of the above
Answer: active transport
●● identify the type of transport that will occur for the oxygen
molecules that requires no energy for transport
passive diffusion
SOLVED QUESTIONS AND VERIFIED
ANSWERS
●● a homogeneous mixture consists of 12% ethanol, 28% methanol, and
60% water. what is the solvent? water, methanol, ethanol, or ethanol +
methanol
Answer: water
●● in a solution, the solute is:
Answer: the substance that is dissolved
●● example of colloid: grape juice, homogenized milk, blood, or kool-
aid.
Answer: homogenized milk
●● example of suspension: blood, homogenized milk, apple juice, or
mayo.
Answer: blood
●● unknown liquid that is insoluble in water but not in benzene (an
aromatic hydrocarbon solvent). what type of molecule is unknown?
polar, nonpolar, neither polar or non polar, or both polar and non polar
,Answer: nonpolar
●● solubility of _________ in water decreases as temperature increases.
liquids, solids, or gases?
Answer: gases
●● which compound will be most soluble in hexane?
CH3CH2OH CH3OH
CH3CH2CH2OH
Answer: CH3CH2CH2OH
●● water solution of sodium chloride is a good conductor of electricity.
due to this property, table salt is classified as a(n):
weak electrolyte, strong electrolyte, non-electrolyte, or semi-electrolyte
Answer: strong electrolyte
●● example of a weak electrolyte
MgCl2, HC2H3O2, HNO3, or KOH
Answer: HC2H3O2
,●● in order to prevent the process off either crenation or hemolysis with
red blood cells an intravenous solution concentration should
be__________ to the concentration of blood.
hypotonic, hypertonic, isotonic, or all of the above.
Answer: isotonic
●● the process of crenation occurs when the concentration outside a cell
is ______ and is said to be _________.
lower in concentration; hypotonic
higher in concentration; hypertonic
higher in concentration; hypotonic
higher in concentration; hypertonic
none of these
Answer: higher in concentration; hypertonic
●● air can be classified to be a solution of several gases. which gas is
considered to be the solvent?
O2, N2, CO2, or H2O
Answer: N2
, ●● arrange the terms solution, suspension, and colloid in order of
increasing size of the dispersed particles (smallest to largest).
solution < suspension < colloid
solution < colloid < suspension
suspension < solution < colloid
colloid < solution < suspension
Answer: solution < colloid < suspension
●● identify the type of transport that will occur for the sodium ions that
requires energy for transport
passive diffusion
active transport
facilitated diffusion
all of the above
none of the above
Answer: active transport
●● identify the type of transport that will occur for the oxygen
molecules that requires no energy for transport
passive diffusion
