Classify each of the following statements true or false as appropriate.

1.     A substance of pH 10 is an acid.

2.     Salts are solid in the crystalline form.

3.     Most salts melt at relatively high temperatures.

4.     Salts are formed from the neutralization reaction of an acid and a base.

5.     Most bases feel slippery.

6.     Most acids taste bitter.

7.     Acid solutions are good electrolytes.

8.     Hydrocarbons containing at least one triple bond are called alkenes.

9.     Sodium hydroxide (KOH) is a strong acid.

10.   HCl is a strong acid.

11.  Salts are compounds made up of any positive ion except hydrogen and any negative ion
       except hydroxide.

12.  Most bases feel slippery.

13.  Many acids release hydrogen gas when reacted with metals.

14.  A solution of pH 7 is acidic.
 

Multiple Choice Section

1.   Why does carbon form so many compounds?
      A.    Carbon is an organic element.
      B.    Carbon makes up about 90 percent of the universe.
      C.    Carbon has four electrons in its outer energy level.
      D.    Carbon has three allotropes: graphite, buckminsterfullerene, and diamond

2.   Hydrocarbons that contain at least one double bond between carbon atoms are classified as
      A.    single hydrocarbons     B.    aromatic hydrocarbons    C.    saturated hydrocarbons
      D.    unsaturated hydrocarbons

3.   What is the difference in the composition of saturated and unsaturated fats?
       A.    Saturated fats contain one or more double bonds between carbon atoms; unsaturated fats
              contain only single bonds between carbon atoms.
       B.    Saturated fats contain only single bonds between carbon atoms; unsaturated fats contain
              one or more double bonds between carbon atoms.
      C.    Saturated fats are substituted hydrocarbons; unsaturated fats contain no substitutions.
      D.    Unsaturated fats are substituted hydrocarbons; saturated fats contain no substitutions

4.   How many valence electrons does a carbon atom have?
      A.. one   B. two   C.. three   D.  four

5.   The simplest organic compounds are the  A.. hydrocarbons.   B.  alcohols.  C.  organic acids.   D. esters.

6..  Compounds with the same molecular formulae but different structures are called
      A. . esters.    B.  isomers.   C.  polymers.   D.  monomers.

7.   Saturated hydrocarbons have the maximum number of
      A.  hydrogen atoms.   B.  carbon atoms   C.  oxygen atoms.   D.  nitrogen atoms.

Matching Section (please match the description in column A with the available choice in column B

                              Column A                                                                        Column B

1.    Hydrocarbons containing entirely single bonds. 2.    Increments on this scale work based on powers of 10. 3.    A pH greater than 7. 4.    A pH less than 7. 5.    The color litmus turns in strong acids. 6.    Hydrocarbons containing at least one double bond. 7.    This cyclic hydrocarbon has a ring shaped appearance. 8.    Hydrocarbons containing at least one triple bond. 9.    The color litmus turns in strong bases.

A.  alkene B.  alkane C.  benzene D.  acid E.   base F.   pH G.  alkyne H.  red I.   blue

Short Answer Section

1.  List four properties possessed by most acids.
 

2.  List four properties exhibited by most bases.
 
 

3.   Identify the compounds indicated which follow.
 
 

4.   Complete the chart below.
 
 

Alkane Carbon Number	Name of the Alkane
1
2
3
4
5

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