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Question 1

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Use the following information to answer the next question.




Carbon-containing Compounds

  1. CCl4(l)
  2. Fe3C(s)
  3. C2H2(g)
  4. C2H5OH(l)
  5. CO(g)
  6. C3H8(g)
  7. NaCN(s)
  8. MgCO3(s)



The compounds numbered above that can be classified as organic are 

 


(Record your answer from lowest to highest numerical order.)


 .


Question 4


Use the following information to answer the next question.




Organic Compounds

1.   2-methylcyclobut-1-ene   

2.   1, 2-dibromohexane   

3.   2, 2-dimethylpentane  

4.  5-methylhept-3-yne   

5.   cycloheptane   

6.   pentan-1-ol   


The organic compound numbered above that

is an alkene is 

_

is an alcohol is 

_

contains a triple bond is 

_

is cyclic and saturated is 

_



Question 7


Use the following information to answer the next question.




Hexane and hex-1-ene are both colourless liquids. One method used to differentiate hexane and hex-1-ene is to add a few drops of orange-coloured aqueous bromine to samples of each organic compound.


When aqueous bromine is added to hexane and hex-1-ene in the presence of light, the hexane undergoes 

Choose...

an addition

a substitution

 reaction and the hex-1-ene undergoes 

Choose...

an addition

a substitution

 reaction.


Question 8


Use the following information to answer the next question.


2-chloropentane + hydroxide ions → pent-2-ene + chloride ions + water


The chemical reaction shown above is classified as a(n)

Select one:

A) addition reaction

B) esterification reaction

C) elimination reaction

D) substitution reaction


Question 9


At SATP, which of the following compounds has the highest boiling point?

Select one:

A) phenol

B) cyclohexane

C) benzene

D) chlorocyclohexane


Question 10




At SATP, which of the following compounds is the most soluble in water?

Select one:

A) propane

B) 1-chloropropane

C) propanol

D) 2-chloropropane


Question 11


Solvent extraction is a 

Choose...

physical

chemical

 process that can be used to 

Choose...

separate the organic compounds in a solution

convert larger organic molecules into smaller organic molecules



Question 13



Calculate the energy in kJ required to increase the temperature of a 175-g piece of copper from -25.0°C to 25.0°C

Answer

_____ kJ

Record your 3-digit answer; do not include units. 


Question 14



Calculate the kJ of energy released when 1.50 kg of hot water at 100.0 ° C cools to room temperature (assume 24.5 °C).

Answer

____ kJ 

Record your 3-digit answer; do not include units.


Question 15



The specific heat capacity of warm water was experimentally determined to be 4.00 J/g°C). When this experimental value is compared with the accepted value (4.19 J/g°C), the percent difference is calculated to be Answer

_____ %

Record your 3-digit answer; do not include percentage sign.


Question 16



Assuming an open system, the enthalpy of combustion of methane is:

Select one:

A) -802.5 kJ/mol

B) -709.9 kJ/mol

C) -951.7 kJ/mol

D) -560.7 kJ/mol


Question 17



60.0 mL of a 1.00 mol/L NaOH(aq) solution is mixed with 60.0 mL of a 1.00 mol/L HCl(aq) solution in a calorimeter. The following temperatures were measured or calculated:


Initial temperature of HCl solution (°C)21.5

Initial temperature of NaOH solution (°C)23.5

Average initial temperature of solutions (°C)22.5

Final temperature of solutions (°C)35.0


The molar heat of neutralization for the NaOH(aq) in this reaction is

Select one:

A) - 26.1 kJ/mol

B) - 377 kJ/mol

C) - 52.4 kJ/mol

D) - 105 kJ/mol


Question 18



During a combustion reaction, energy is 

Choose...

released to

absorbed from

 the surroundings because the products have 

Choose...

lower

higher

 potential energy than the reactants.


Question 19


Use the following information to answer the next question.




Chemicals

  1. O2(g)
  2. CO(g)
  3. CO2(g)
  4. H2O(l)
  5. H2O(g)
  6. C6H12O6(aq)


Match the chemicals numbered above with the statements given below.

The reactants of photosynthesis are

Select one or more:

1

2

3

4

5

6


Question 20


The products of complete hydrocarbon combustion in an open system are

Select one or more:

1

2

3

4

5

6

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