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1 | |
Ingredients for concrete are |
| | A) | sand, water, and clay. |
| | B) | cement and water. |
| | C) | cement and sand. |
| | D) | cement, water, and sand. |
| | E) | gravel, water, and clay. |
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2 | |
Galvanized nails are |
| | A) | steel nails treated electrically to prevent corrosion. |
| | B) | made of aluminum. |
| | C) | steel nails coated with zinc. |
| | D) | were invented by Luigi Galvani. |
| | E) | made of zinc. |
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3 | |
Which of the following is not true of asbestos? |
| | A) | Asbestos does not conduct electricity. |
| | B) | Asbestos is a silicon based, fibrous mineral. |
| | C) | Asbestos is a trade name for fiberglass. |
| | D) | Asbestos has been shown to cause cancer when inhaled. |
| | E) | Asbestos does not burn at all. |
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4 | |
Halogen lamps contain which of the following two elements? |
| | A) | Cl and Br |
| | B) | W and I |
| | C) | Si and F |
| | D) | Br and I |
| | E) | Cu and Cl |
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5 | |
Which is true of soaps, but not true of synthetic detergents. |
| | A) | They form micelles in water. |
| | B) | They are organic compounds. |
| | C) | They can be anions, cations, or neutral. |
| | D) | They form insoluble calcium salts. |
| | E) | They contain long chains of CH2 groups. |
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6 | |
Which of the following is true of detergent builders? |
| | A) | Phosphate is an excellent builder and frequently used as such. |
| | B) | Phosphate is an excellent builder but is seldom used as such any longer. |
| | C) | Builders are enzymes. |
| | D) | Builders tie up metal ions such as Na+. |
| | E) | Builders form micelles in water. |
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7 | |
Carbon dioxide is being used in dry cleaning because |
| | A) | it will liquify at room temperature and atmospheric pressure. |
| | B) | it has a lower molar mass than tetrachloroethene. |
| | C) | it is a very polar compound. |
| | D) | leaks will be less damaging to the environment than was the case with tetrachloroethene. |
| | E) | it is very water soluble. |
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8 | |
Select the best statement concerning leavening agents. |
| | A) | Baking powder and baking soda can be used interchangeably in a recipe. |
| | B) | Baking soda is an ingredient in baking powder. |
| | C) | Yeast is activated by the temperatures of baking in the oven. |
| | D) | Baking powder requires the use of an acid such as vinegar or lemon juice in the recipe. |
| | E) | All leavening agents release carbon monoxide to form bubbles in a baked product. |
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9 | |
Choose the incorrect statement about alloys. |
| | A) | Steel is mostly iron with a small amount of carbon and other metals. |
| | B) | Bronze and brass both contain mostly copper. |
| | C) | Sterling silver contains silver and copper. |
| | D) | Aluminum in pop cans is pure aluminum. |
| | E) | Gold jewelry contains either silver or copper. |
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10 | |
Products that probably include synthetic detergents include: |
| | A) | dishwashing liquid, laundry detergent, and bar soap. |
| | B) | toothpaste, shampoo, and scouring powder. |
| | C) | dishwashing liquid, brass cleaner, and toilet bowl cleaner. |
| | D) | laundry detergent, hair dye, and bar soap. |
| | E) | shampoo, lipstick, and sunblock. |
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11 | |
Methyl butyrate is made by reacting |
| | A) | methyl alcohol and butyric acid. |
| | B) | methyl chloride and butyl alcohol. |
| | C) | methanoic acid and butyl alcohol. |
| | D) | methyl terpene and butyl terpene. |
| | E) | methyl acetate and butyl acetate. |
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12 | |
High quality perfumes are |
| | A) | extremely pure organic compounds. |
| | B) | mixtures of many compounds. |
| | C) | made by dissolving flowers. |
| | D) | edible because they are natural products. |
| | E) | used almost entirely for personal fragrance. |
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13 | |
24 karat gold is |
| | A) | 24% gold and the rest silver |
| | B) | 24% silver and the rest gold |
| | C) | 100% gold |
| | D) | used in fine jewelry |
| | E) | no longer being produced |
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14 | |
Compounds suitable for use as antacids include: |
| | A) | sodium bicarbonate and sodium sulfate. |
| | B) | aluminum chloride and magnesium chloride. |
| | C) | sodium bicarbonate and sodium chloride. |
| | D) | calcium carbonate and dihydrogen carbonate. |
| | E) | aluminum hydroxide and magnesium hydroxide. |
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15 | |
How much sodium bicarbonate is needed to neutralize 100mL of pH 2.0 HCl ? |
| | A) | 0.0010 moles |
| | B) | 0.084 grams |
| | C) | 84 milligrams |
| | D) | all of the above |
| | E) | none of the above |
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16 | |
Terpenes |
| | A) | are frequently terribly unpleasant to smell |
| | B) | are used in household cleaning products |
| | C) | are typically volatile compounds |
| | D) | have a formula C10H16 |
| | E) | 2 of the above answers |
| | F) | 3 of the above answers |
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17 | |
Household items which represent the three major types of chemical bonding are |
| | A) | aspirin, salt, and diamonds. |
| | B) | flour, sugar, and water. |
| | C) | sterling silver, aspirin, and salt. |
| | D) | sapphire, carborundum, and perfume. |
| | E) | brass, aspirin, galvanized nails. |
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18 | |
Identify the incorrect statement about paclitaxel. |
| | A) | It was isolated originally from a natural source. |
| | B) | It was originally synthesized in an attempt to make an anti-cancer drug. |
| | C) | It is a highly successful anti-cancer drug. |
| | D) | Most paclitaxel sold today has been synthesized in the laboratory. |
| | E) | It has been discovered in additional natural sources. |
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19 | |
The percentage of carbon in aspirin is |
| | A) | 60.0%. |
| | B) | 42.8%. |
| | C) | 61.4%. |
| | D) | 26.1%. |
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20 | |
Indigestion remedies do their job by |
| | A) | oxidizing excess acidic compounds in our stomach. |
| | B) | precipitating excess acidic compounds in our stomach. |
| | C) | lowering the stomach's pH. |
| | D) | adding base to neutralize excess acidic compounds in our stomach. |
| | E) | causing acidic compounds to leave the stomach and enter the rest of our digestive system. |
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21 | |
Dihydrogen monoxide is |
| | A) | found in the blood serum of all poison victims. |
| | B) | formed in all forest fires. |
| | C) | known to cause severe symptoms if only 0.05 grams are consumed over a week's time. |
| | D) | is always found in polluted rivers. |
| | E) | All of the above. |
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