Test: Chemical Reactions

18 Questions | Total Attempts: 180

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Chemical Reaction Quizzes & Trivia

Review for unit test.


Questions and Answers
  • 1. 
    Which of the following is an example of a synthesis reaction?
    • A. 

      Heating calcium carbonate strongly

    • B. 

      Putting sodium into water to produce hydrogen gas and sodium hydroxide

    • C. 

      Passing electricity through water

    • D. 

      Heating mercuric oxide

    • E. 

      Putting copper into oxygen to produce copper (II) oxide

  • 2. 
    A double displacement chemical reaction is the
    • A. 

      Exchange of two different atoms between two compounds.

    • B. 

      Displacement of one element in a compound by another element.

    • C. 

      Breaking up of a compound to produce two different elements.

    • D. 

      Joining together of two elements to form a compound.

    • E. 

      Absorption of heat in a chemical reaction.

  • 3. 
    An acid-base indicator is a substance that
    • A. 

      Does not change colour when the pH of the test solution goes from 4 to 9.

    • B. 

      Is always red in acid and green in base.

    • C. 

      Is rare and can only be obtained as a specialized chemical.

    • D. 

      Turns different colours in acids and bases.

    • E. 

      Does none of these.

  • 4. 
    The following list contains properties of common acids and bases in water. Which of these properties describe a base? 1. turns litmus blue 2. becomes clear/cloudy in phenolphthalein 3. feels slippery 4. tastes sour 5. reacts with chalk (calcium carbonate).
    • A. 

      1 and 3 only

    • B. 

      1, 2, 3, 4, and 5

    • C. 

      1, 4, and 5 only

    • D. 

      2 and 5 only

    • E. 

      3 and 4 only

  • 5. 
    An acid with a pH of 3 is _____ times more acidic than an acid with a pH of 5.
    • A. 

      Two

    • B. 

      Ten

    • C. 

      One hundred

    • D. 

      One thousand

    • E. 

      Ten thousand

  • 6. 
    Which of the following are correct concerning neutralization reactions? Neutralization reactions 1. produce water. 2. produce a salt. 3. are single displacement reactions. 4. have an acid and a base as reactants. 5. are synthesis reactions.
    • A. 

      2, 4, and 5 only

    • B. 

      1, 4, and 5 only

    • C. 

      2, 3, and 4 only

    • D. 

      1, 2, and 3 only

    • E. 

      1, 2, and 4 only

  • 7. 
    Which reaction among the following is NOT a neutralization?
    • A. 

      H2SO4 + Ca(OH)2 --> CaSO4 + 2 H2O

    • B. 

      Zn + 2 HCl --> ZnCl2 + H2

    • C. 

      KOH + HCl --> KCl + H2O

    • D. 

      HNO3 + NaOH --> H2O + NaNO3

    • E. 

      2 Al(OH)3 +3 H2SO4 --> Al2(SO4)3 + 6 H2O

  • 8. 
    XF2 is the formula of a metallic fluoride. The formula of the corresponding metallic oxide of X is
    • A. 

      XO.

    • B. 

      XO2.

    • C. 

      XO4.

    • D. 

      X2O.

    • E. 

      X2O3.

  • 9. 
    Which of the following polyatomic ions have names that end in "ate"? 1. ClO3- 2. OH- 3. PO43- 4. HCO32- 5. SO32-
    • A. 

      2, 3, and 4 only

    • B. 

      2, 3, and 5 only

    • C. 

      1 and 5 only

    • D. 

      1, 3, and 4 only

    • E. 

      1, 2, 4, and 5 only

  • 10. 
    When the following equation (for the production of rust) is balanced, the coefficients for Fe(OH)2 and O2 in order are: Fe(OH)2 + O2 + H2O ® Fe(OH)3
    • A. 

      3, 2

    • B. 

      4, 1

    • C. 

      2, 3

    • D. 

      2, 2

    • E. 

      1, 4

  • 11. 
    Which of the following metals would displace aluminum in aluminum nitrate?i) copperii) goldiii) magnesiumiv) ironv) calcium
    • A. 

      I, ii and v only

    • B. 

      Ii, iv and v only

    • C. 

      Iii and v only

    • D. 

      I and iii only

    • E. 

      V only

  • 12. 
    This acid is responsible for the pain felt from a stinging insect.
    • A. 

      Formic acid

    • B. 

      Sulfuric acid

    • C. 

      Nitric acid

    • D. 

      Acetylsalicylic acid

    • E. 

      Citric acid

  • 13. 
    Which of the following observations positively identifies an acid?
    • A. 

      Solution turn pink in phenolphthalein

    • B. 

      Red litmus paper stays red

    • C. 

      The substance feels slippery

    • D. 

      Blue litmus paper turns blue

    • E. 

      Oxygen gas is produced when a metal is added

  • 14. 
    Which of the following is a physical change?
    • A. 

      Silver tarnishing

    • B. 

      Muffins baking

    • C. 

      Fireworks igniting

    • D. 

      Snow melting

    • E. 

      Sodium chloride dissolved in water

  • 15. 
    The reaction of solutions of ammonium phosphate and barium nitrate gives a precipitate of barium phosphate.  The equation which best represents this statement is:
    • A. 

      2(NH4)3PO4(s) + 3Ba(NO3)2(aq) --> Ba3(PO4)2(aq) + 6NH4NO3(s)

    • B. 

      2(NH4)3PO4(aq) + 3Ba(NO3)2(aq) --> Ba3(PO4)2(s) + 6NH4NO3(aq)

    • C. 

      2(NH4)3PO4(aq) + 3Ba(NO3)2(s) --> Ba3(PO4)2(s) + 6NH4NO3(aq)

    • D. 

      2(NH4)3PO4(aq) + 3Ba(NO3)2(aq) --> Ba3(PO4)2(aq) + 6NH4NO3(aq)

  • 16. 
    The major cause of acid precipitation from car exhaust is:
    • A. 

      Hydrogen gas

    • B. 

      Sulfur dioxides

    • C. 

      Nitrogen oxides

    • D. 

      Carbon monoxide

    • E. 

      Carbon dioxide

  • 17. 
    When a piece of Al is immersed in a solution of CuCl2, the result is
    • A. 

      AlCl3 and CuCl2

    • B. 

      Al(s) Cu(s) and Cl2(g)

    • C. 

      AlCl3 and Cu(s)

    • D. 

      CuCl2 and Al2

    • E. 

      No reaction

  • 18. 
    How many atoms of oxygen in 3 molecules of aluminum phosphate?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

    • E. 

      12