MR EIKELBOOM'S CLASS WEBSITES



4U Chemistry Final Exam Review Questions 2013Multiple choice Compared to the charge and mass of a proton, an electron has...A. the same charge and a smaller massB. the same charge and the same massC. an opposite charge and a smaller massD. an opposite charge and the same massA proton has approximately the same mass asA. a neutronB. an alpha particleC. a beta particleD. an electronWhich symbols represent atoms that are isotopes?A. C-14 and N-14B. O-16 and O-18C. I-131 and I-131D. Rn-222 and Ra-222What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?A. 28B. 56C. 62D. 90The probability area that best represents the shape of an atomic 3p orbital is... Which of the following is the correct electron-dot formula for carbon dioxide?Which of the following represents the correct formula for aluminum oxide?A. AlOB. Al2O3C. AlO2D. Al2OThe compound above is classified as a(n)a.alkaned.ketoneb.carboxylic acide.alkenec.aldehydeWhich of the following is a secondary alcohol?a.d.CH3OHb.e.CH3CH2OHc.What is the correct name for the above compound?a.2-methyl-3-butanold.3-methyl-2-butanolb.2-pentanole.none of thesec.isobutanolWhat results when a secondary alcohol is oxidized?a.a ketoned.an acidb.an aminee.no reactionc.an aldehydeThe general formula for a cycloalkane can be represented by which of the following?H2n+H2n-2In which of the following compounds does ionic bonding predominate?A. NH4ClB. CO2C. CH4D. LiBrWhich of the following molecules contains only one non-bonding pair of valence electrons?A. NH4+B. HCNC. C2H4D. N2How many PopTarts? are needed to convert 1,000.0 g of water at 20.0 C to steam at 100.0 oC? One PopTart is equal to 800,000 J of energy...wow!A. 0.419 PopTartB. 2.83 PopTartsC. 3.25 PopTartsD. None of the aboveA 1.00 g sample of NH4NO3 is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by 6.12 K. The heat capacity of the system is 1.23 kJ/g·deg. What is the molar heat of decomposition for ammonium nitrate?A. -7.53 kJ/moleB. -16.1 kJ/moleC. -398 kJ/moleD. -602 kJ/moleGiven the following data at 1 atm of pressure and 25.0 oC...?H of formation = +64.4 kJ/mole for Cu2+?H of formation = -152.4 kJ/mole for Zn2+?H of formation = 0 for both Zn and Cu because these are in the most stable state.Calculate the standard heat of reaction for...A. -217 kJ/moleB. +217 kJ/moleC. -88.0 kJ/moleD. +88.0 kJ/moleWhich of the following compounds contains 10 carbon atoms?a.2,2,3-trimethylheptanec.2-methyldecaneb.octaned.2,3-dimethylheptaneWhat is the total number of sigma bonds found in the following compound?A. 8B. 10C. 11D. 15What is the molar enthalpy of reaction for the combustion of methane? The balanced chemical equation and the bond energies for the various bonds in the reactants and products are...A. +80 kJ/moleB. -284 kJ/moleC. +668 kJ/moleD. -668 kJ/moleThe following reaction coordinate diagram represents...A. an endothermic reaction.B. an exothermic reaction.C. a reaction that is neither endothermic nor exothermic.D. a reaction in which a catalyst is used.What is the total number of pi bonds found in the following compound?A. 1B. 2C. 3D. 4An amine is characterized by what functional group?a.-CO2CH3d.-CHOb.-NH2e.-OHc.-CO2HWhich of the following is an alcohol?a.NaOHd.b.e.c.When two alcohols undergo a condensation reaction, what is formed?a.liquid alcohold.an aldehydeb.a ketonee.an etherc.an esterThe correct name for the compound given above is which of the following?a.2-methyl-1-butened.3-methyl-2-buteneb.pentenee.2-ethyl-1-pentenec.2-ethyl-1-propeneWhat is the correct name for the above compound?a.2,3-dimethylbutaned.2,2-dimethylbutaneb.hexanee.isohexanec.2-methylpentaneWhat is the hybridization of the oxygen atom in water?A. spB. sp2C. sp3D. It is not hybridized.Which of the following best represents the 3-dimensional view of NH2-?Which ion would NOT have the same electron configuration as the noble element Neon? ?A. K 1+B. F 1-C. O 2-D. Mg 2+E. None of the above Which sublevel, when full, corresponds to the first row of transition metals3d3f4d4f4pWhich number sequence represents the most likely arrangement of electrons for an element in a stable compound?A. 2 - 8 - 6B. 3 - 5 - 7C. 2 - 8 - 7D. 2 - 8 - 8A triple bond contains what types of bonds1 pi and 2 sigma3 sigma3 pi2 pi and 1 sigmanone of the aboveWho said we could not know the speed and location of an electron at the same time?SchrodingerBohrHeisenberg HundNone of the aboveA pure substance has a high melting point and conducts electricity when dissolved in water, it is most likely a Network solidIonic solidMolecular solidMetallic solidNone of the above According to valence bond theory, what is required for two atoms to bond?Both atoms need a half filled orbitalBoth atoms need an empty orbitalBoth atoms need a full orbitalBoth atoms need hybridized orbitals None of the aboveWhich of the following molecules has both ionic and covalent bonds in it?NH4NO3CH3OCH3CaFBrLiFAll of the aboveThe initial rate of production of Br2 gas in the following reaction is 0.0750mol/L*s. What is the rate of loss of HBr gas4HBr + O2 2Br2 2H2O0.0188mol/L*s0.0375 mol/L*s0.0750 mol/L*s0.150 mol/L*s0.300 mol/L*sThe correct name for compound above is which of the following?a.chloropropylbenzenec.1-chloro-3-phenyl-3-propeneb.3-phenyl-1-choloropropyned.3-chloro-1-phenyl-1-propeneThe correct name for the compound given above is which of the following?a.1,3-cyclopentadienec.1,4-cyclopenteneb.1,4-cyclopentadiened.1,3-cyclopenteneThe correct name for the compound given above is which of the following?a.2-cycloproproxylcyclobutanec.2-cyclobutoxycyclopropaneb.cyclobutylpropoxy etherd.cyclopropoxycyclobutaneOf the five names listed below, four contain deliberate errors. Which is the only name is correct?a.2-pentanald.1,2-dimethylpropanoateb.2,3-dichloropentanee.n-methylpropanamidec.3-methylpropanoic acidThe reaction of CH3CH=CH-CH=CH2 with excess bromine gives chieflya.1,2-dibromo-3-penteneb.3,4-dibromo-1-pentenec.1,4-dibromo-2-pentened.a mixture of the above three compoundse.none of the above three compoundsThe number of isomers of chlorobromobenzene is which of the following?a.threed.sixb.foure.sevenc.fiveGiven the following mechanism, what is the equation for the overall reaction2A+ B 2C ( slow)B+C D+E ( fast )C+D E+F (fast) 2A 2E + F2A + 2B 2E + F2A + B + 2C + D 2C + D + 2E + F2A+ B 2E + F Which best explain why noble elements are unreactive?A. Their first energy level has 2 electronsB. Their outermost energy level has 8 electronsC. Their second energy level has 8 electronsD. Their first energy level has 8 electronsWhat is the valence of a Selenium atom (group 16)?A. 2B. 4C. 6D. 8The rate of a reaction depends upon:A. the concentration of the reactants.B. the temperature of the reaction.C. whether or not a catalyst is used.D. the nature of the reactants.E. All of the above are correct.Which of the following statement(s) about a reaction mechanism is/are true?I. The mechanism is the series of steps needed to complete a reaction.II. The rate of a reaction is only as fast as the slowest step in the mechanism.III. You can usually deduce the reaction mechanism from its reactants and products.A. I onlyB. II onlyC. III onlyD. I and II onlyE. I, II, and IIIWhat kind of chemical system can have energy entering and leaving, but not matterOpen systemClosed systemIsolated systemAll of the aboveNone of the aboveIf Substance A has a lower specific heat capacity than substance B and they are both left in the sun for the same amount of time..Substance A will heat up fasterSubstance B will heat up fasterThey will heat up at the same rateThey will both maintain their current temperatureNone of the aboveIn the above diagram which is the highest temperature?A. T1 = T2B. T1 < T2C. T1 > T2D. It is impossible to tell.Which of the curves has the greatest number of collisions possessing the activation energy?A. T1 has the greatest number of collisions possessing the activation energyB. T2 has the greatest number of collisions possessing the activation energyC. Both have an equal number of collisions possessing the activation energy.D. It is impossible to tell.If a catalyst were used, how would the distributions change?A. Both curves would shift to the right.B. Both curves would shift to the left.C. The activation energy would shift to the right.D. The activation energy would shift to the left.E. Nothing about the distributions would change.Which of the following describes the total quantity of kinetic and potential energy in a substanceHeatTemperatureThermal energy EnergyNone of the aboveCalculating the change in reactant concentration over a time of 5 seconds will tell youInstantaneous reaction rateAverage reaction rateStoichiometric rate relationReaction Progress None of the aboveTo which family of organic compounds does CH3CHOCH2CH2CH3 belongalcoholaldehydealkyneketonecarboxylic acidWhich class of organic compound does not contain a C=O groupamidesethersketonesesterscarboxylic acidsThe formula for methyl ethanoate is which of the following?a.c.b.d.The correct IUPAC name for above compound is which of the following?a.fluorobutanoic acidc.2-fluoro-2-nitrobutanoic acidb.3-fluoro-3-nitrobutanoic acidd.3-fluoro-2-nitropropanoic acidWhich two compounds combine to form an ester carboxylic acid and alcoholaldehyde and alcoholalcohol and a ketonecarboxylic acid and ketonealdehyde and a carboxylic acid Use your knowledge of collision theory and the potential energy diagram shown at right to answer the next 4 questions. Assume the energy values are in Kilojoules.Which letter shows the potential energy of the activated complex?ABCDEWhat is the H of the reaction?A. + 35 KJB. - 35 KJC. + 25 KJD. - 10 KJE. None of these are correct.Which letter shows the activation energy?ABCDEHow would the graph change if the temperature were raised?A. A and D would have higher energies.B. C would be greater.C. The activation energy would decrease.D. More than one of the above are correct.E. No change in the graph would occur.How would the graph change if a catalyst were used.A. A and D would have higher energies.B. C would be greater.C. The activation energy would decrease.D. More than one of the above are correct.E. No change in the graph would occur.Which of the following is the correct name for the structure below?a.trans-4-nonynec.trans-4-noneneb.cis-5-nonened.cis-4-noneneThe primary product of the following reaction is which of the following?a.c.b.d.The correct synthesis of octane would involve which of the following reactions?a.dehydrogenation of 2-octenec.hydrogenation of 3-octeneb.halogenation of 4-octened.reduction of isooctaneThe synthesis sequence shown here is best described as which of the following?1.2.3.a.(1) Dehydration; (2) halogenation; (3) hydrogenationb.(1) Hydrogenation; (2) dehydration; (3) halogenationc.(1) Hydrogenation; (2) halogenation; (3) dehydrationd.(1) Halogenation; (2) hydrogenation; (3) dehydratione.(1) Dehydration; (2) hydrogenation; (3) halogenationThe melting point of a compound is not influenced by which of the following?a.polarityd.hydrogen bondsb.electronegativity of its atomse.isotope of carbonc.Van der Waals forcesHow many actual double bonds does the benzene ring possess?a.4d.1b.3e.0c.2An amine is characterized by what functional group?a.-CO2CH3d.-CHOb.-NH2e.-OHc.-CO2HThe chemical bond between glycerin and a fatty acid is which of the following?a.an ester bondd.an ether bondb.a double bonde.a hydrogen bondc.a peptide bondEthanoic acid (vinegar) when diluted to low concentrations by water can be prepared from ethene bya.reduction with H2, followed by reaction with a strong oxidizerb.addition of HCl, followed by reaction with H2Oc.addition of H2O followed by reaction with a strong oxidizerd.addition of Br2, followed by reduction with H2The product formed by the reaction of CH3CO2H withis properly nameda.N-ethyl-N-methylethanamidec.N,N-diethylmethanamideb.N,N-diethylaminomethaned.N-ethyl-N-methylmethamideShort answer / Calculations Fill in the following chart with simple examples Explain the steps in synthesizing an amide. Explain the type of organic molecule that uses substitution reactions and give an example using the production of an organic halideList the 4 quantum numbers and what they representName the element that would fill the following energy level diagram and explain who came up with the rule for determining the filling patternDraw the energy level diagram for titanium and explain why it can have multiple positive chargesExplain the periodic table is set up by referring to the Quantum orbitals s,p,d,fWrite a reaction that represents the addition of H2O with Li.Draw the Lewis structures for the following and state molecular geometry Identify each as alkene, alkyne, or alkane, Draw their structural formula and give their IUPAC names.1) C4H82) C2H23) C3H8 Fill in the hybridization that is occurring at each indicated elementWrite the name of each of the following organic compounds:Explain how you can predict if a molecule will be polarWhat are the different types of intra and intermolecular forces Explain what the system and the surroundings areWhat is a molar enthalpy and give an example Draw the structures for the following organic molecules:methylcyclopentane2-ethyl-2-penteneN-Ethyl ethanamineTry one of these Hess’s law questions…or bothRepresent the following equation in 3 other ways Look at the image below:How many elementary steps are there in this reactionWhich is the rate determining stepHow many intermediate products are there? What happens to them?How does electronegativity affect how bonds tend to “act” with regards to polarityDescribe the difference between Ferromagnetism and Paramagnetism How is diamond different from graphite? Explain it in terms of hybridization How is heat different than temperature?What two things are needed for an effective collision to occur which will allow a chemical reaction to occur?We use the phrase the rich get richer to help us remember Vladimir Markovikov's rule regarding addition reactions, state this rule in terms of a chemical reaction. ................
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