Portage learning CHEM 104 Final Exam Questions and Answers (2025 / 2026) (Verified Answers)

Portage learning CHEM 104 Final Exam
Questions and Answers ()
(Verified Answers)



1. what can serve as the solvent in a solution? liquid, solid, gas, or all of
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qthe above.ANS: all of the above
q q q q q




2. a homogeneous mixture consists of 12% ethanol, 28% methanol, and 60% water.
q q q q q q q q q q q




what is the solvent? water, methanol,ethanol,or ethanol + methanol ANS:- water
q q q q q q q q q q q q q q




3. in a solution,the solute is: ANS:the substance that is dissolved
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4. example of colloid: grape juice, homogenized milk, blood, or kool-aid.ANS: ho-
q q q q q q q q q q




mogenized milk
q q




5. exampleofsuspension:blood,homogenizedmilk,applejuice,or mayo. ANS:-blood
q q q q q q q q q q q q




6. unknown liquid that is insoluble in water but not in benzene (an aromatic
q q q q q q q q q q q q




hydrocarbon solvent).what type of molecule is unknown? polar, nonpolar, neither
q q q q q q q q q q q




polar or non polar, or both polar and non polar ANS: nonpolar
q q q q q q q q q q q q




7. solubility of q q inwaterdecreasesastemperatureincreases.liq- uids,
q q q q q q q




solids, or gases? ANS: gases
q q q q q




8. whichcompound will be most soluble in hexane?
q q q q q q q




CH3CH2OHCH3OH CH3CH2CH2OH q q

, ANS:CH3CH2CH2OH
q




9. watersolutionof sodiumchlorideisa goodconductor ofelectricity.due to this
q q q q q q q q q q q q q




property, table salt is classified as a(n):
q q q q q q q




weakelectrolyte,strongelectrolyte,non-electrolyte,orsemi-electrolyteANS:strong electroly
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10. exampleof a weak electrolyte q q q q




MgCl2,HC2H3O2,HNO3,orKOHANS:HC2H3O2
q q q q q q




11. in order to prevent the process off either crenation or hemolysis with red blood cells
q q q q q q q q q q q q q q




an intravenous solution concentration should be
q q q to q q q




the concentration of blood.
q q q q




hypotonic,hypertonic,isotonic,orallof theabove. ANS:isotonic
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12. theprocess of crenation occurs when theconcentration outside a cell is
q q q q q q q q q q q




and is said to be
q q q q q .

lowerinconcentration;hypotonic higherin
q q q q q




concentration; hypertonic higher in
q q q q




concentration; hypotonic
q q

,higherinconcentration;hypertonic
q q q




noneof these ANS:higher in concentration;hypertonic
q q q q q q q




13. air canbe classified to be a solution of several gases.which gas is considered to be
q q q q q q q q q q q q q q q q




the solvent?
q q




O2,N2,CO2,or H2O ANS:N2
q q q q q q




14. arrangetheterms solution,suspension,andcolloidinorderofincreasing size of the
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dispersed particles (smallest to largest).
q q q q q




solution < suspension < colloid q q q q




solution < colloid < suspension
q q q q q




suspension < solution < colloid
q q q q q




colloid < solution < suspension ANS:solution < colloid < suspension
q q q q q q q q q q




15. identify the type of transport that will occur for the sodium ions that requires
q q q q q q q q q q q q q




energy for transport
q q q




passivediffusionactive q q




transport facilitated
q q




diffusion all of the
q q q q




above
q




noneofthe above ANS:active transport
q q q q q q




16. identifythetypeoftransport thatwilloccurfor theoxygenmoleculesthat requires no
q q q q q q q q q q q q q q




energy for transport
q q q

, passivediffusionactive
q q




transport facilitated
q q




diffusion all of the
q q q q




above
q




none of the above: ANSnone of the above
q q q q q q q q




17. predictwhichwill fully dissociate(strong electrolyte) in water
q q q q q q q q




q sugar

organicacidpyruvic KCl
q q q




qall

none ANS:KCl
q q




18. in order to prevent the process of either crenation or hemolysis with red blood cells an
q q q q q q q q q q q q q q q




intravenous solution concentration should be
q q qto the q q q q




concentration of blood.
q q q