TEAS Nursing School Review Questions - Question List

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16. Which of the following acids is classified as weak?
  1. CH3COOH
  2. HCl
  3. HBr
  4. HClO4
  5. H2SO4
17. Which of the following families contains characteristically nonreactive elements?
  1. Alkali metals
  2. Alkaline earth metals
  3. Halides
  4. Halogens
  5. Noble gases
18. Which of the following metals reacts explosively when placed in water?
  1. Manganese
  2. Silver
  3. Zinc
  4. Sodium
  5. Chromium
19. A 40.0 gram sample of a radioactive element decays to 5.0 grams in 15 hours. What is the half-life of this element?
  1. 3 hours
  2. 2 hours
  3. 6 hours
  4. 7.5 hours
  5. 5 hours
20. A saturated solution of NaCl is heated until more solute can be dissolved. How is this solution best described?
  1. Dilute
  2. Immiscible
  3. Supersaturated
  4. Unsaturated
  5. Hydrophobic

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