Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Thanks to NASA, scientists have found an arsenic based microorganism living in
Mono Lake, California. For the rest of the organisms on Earth, they are all made up of carbon
based molecules called
a. | ionic bonds | c. | organic compounds | b. | solvents | d. | inorganic
compounds |
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2.
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If you mixed vinegar with baking soda the result is a pH change to
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3.
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Carbon is able to form covalent bonds to many other elements due to the number
of valence electrons it has
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4.
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One acid in the human body is called an amino acid, these acids make up
a. | proteins | c. | lipids | b. | carbohydrates | d. | glucose |
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5.
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Hydrocarbons contain
a. | Hydrogen and Carbon | c. | Iron and Carbon | b. | Helium and Carbon | d. | Oxygen and
Carbon |
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6.
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The night before a sports event we load up with sugars called _____________ to
give us enough energy to compete the next day.
a. | proteins | c. | carbohydrates | b. | lipids |
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7.
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Saturated hydrocarbons, such as gasoline or petroleum, contain carbon and
hydrogen. These bonds are
a. | single, double, and triple | c. | Triple
(C=H) | b. | double (C=H) only | d. | single (C-H) only |
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8.
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You notice that your front lawn (Kentucky Bluegrass) is a light green color in
all areas except for the dark green spots where your dog has urinated. You take a pH reading of
the soil below the grass and it shows a pH of “8”.
a. | The soil is neutral | c. | The soil contains too acidic | b. | The soil
is
too basic |
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Matching
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a. | Acid | c. | Acid and Bases | b. | Base |
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9.
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Corrosive - will burn skin
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10.
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Turns blue litmus paper to red
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11.
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Contains H+ (Hydrogen ions) when dissolved in water
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12.
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Has a bitter taste
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13.
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Less than 7 on the pH scale
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14.
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Greater than 7 on the pH scale
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15.
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reacts with metals to form Hydrogen gas
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16.
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Contains OH- (Hydroxide ions)
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17.
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Sour taste
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18.
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Turns red litmus paper to blue
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19.
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Soapy feel
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20.
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Conducts electricity
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