Test: Chemical Reactions

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  • 1/18 Questions

    Which of the following is an example of a synthesis reaction?

    • Heating calcium carbonate strongly
    • Putting sodium into water to produce hydrogen gas and sodium hydroxide
    • Passing electricity through water
    • Heating mercuric oxide
    • Putting copper into oxygen to produce copper (II) oxide
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About This Quiz

Review for unit test.

Chemical Reaction Quizzes & Trivia

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  • 2. 

    A double displacement chemical reaction is the

    • Exchange of two different atoms between two compounds.

    • Displacement of one element in a compound by another element.

    • Breaking up of a compound to produce two different elements.

    • Joining together of two elements to form a compound.

    • Absorption of heat in a chemical reaction.

    Correct Answer
    A. Exchange of two different atoms between two compounds.
  • 3. 

    Which reaction among the following is NOT a neutralization?

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

    • Zn + 2 HCl --> ZnCl2 + H2

    • KOH + HCl --> KCl + H2O

    • HNO3 + NaOH --> H2O + NaNO3

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

    Correct Answer
    A. Zn + 2 HCl --> ZnCl2 + H2
  • 4. 

    When a piece of Al is immersed in a solution of CuCl2, the result is

    • AlCl3 and CuCl2

    • Al(s) Cu(s) and Cl2(g)

    • AlCl3 and Cu(s)

    • CuCl2 and Al2

    • No reaction

    Correct Answer
    A. AlCl3 and Cu(s)
  • 5. 

    Which of the following is a physical change?

    • Silver tarnishing

    • Muffins baking

    • Fireworks igniting

    • Snow melting

    • Sodium chloride dissolved in water

    Correct Answer
    A. Snow melting
  • 6. 

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

    • 2, 3, and 4 only

    • 2, 3, and 5 only

    • 1 and 5 only

    • 1, 3, and 4 only

    • 1, 2, 4, and 5 only

    Correct Answer
    A. 1, 3, and 4 only
  • 7. 

    An acid-base indicator is a substance that

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

    • Is always red in acid and green in base.

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

    • Turns different colours in acids and bases.

    • Does none of these.

    Correct Answer
    A. Turns different colours in acids and bases.
  • 8. 

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

    • Two

    • Ten

    • One hundred

    • One thousand

    • Ten thousand

    Correct Answer
    A. One hundred
  • 9. 

    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.

    • 2, 4, and 5 only

    • 1, 4, and 5 only

    • 2, 3, and 4 only

    • 1, 2, and 3 only

    • 1, 2, and 4 only

    Correct Answer
    A. 1, 2, and 4 only
  • 10. 

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

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

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

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

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

    Correct Answer
    A. 2(NH4)3PO4(aq) + 3Ba(NO3)2(aq) --> Ba3(PO4)2(s) + 6NH4NO3(aq)
  • 11. 

    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).

    • 1 and 3 only

    • 1, 2, 3, 4, and 5

    • 1, 4, and 5 only

    • 2 and 5 only

    • 3 and 4 only

    Correct Answer
    A. 1 and 3 only
  • 12. 

    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

    • 3, 2

    • 4, 1

    • 2, 3

    • 2, 2

    • 1, 4

    Correct Answer
    A. 4, 1
  • 13. 

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

    • I, ii and v only

    • Ii, iv and v only

    • Iii and v only

    • I and iii only

    • V only

    Correct Answer
    A. Iii and v only
  • 14. 

    Which of the following observations positively identifies an acid?

    • Solution turn pink in phenolphthalein

    • Red litmus paper stays red

    • The substance feels slippery

    • Blue litmus paper turns blue

    • Oxygen gas is produced when a metal is added

    Correct Answer
    A. Red litmus paper stays red
  • 15. 

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

    • XO.

    • XO2.

    • XO4.

    • X2O.

    • X2O3.

    Correct Answer
    A. XO.
  • 16. 

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

    • Formic acid

    • Sulfuric acid

    • Nitric acid

    • Acetylsalicylic acid

    • Citric acid

    Correct Answer
    A. Formic acid
  • 17. 

    The major cause of acid precipitation from car exhaust is:

    • Hydrogen gas

    • Sulfur dioxides

    • Nitrogen oxides

    • Carbon monoxide

    • Carbon dioxide

    Correct Answer
    A. Nitrogen oxides
  • 18. 

    How many atoms of oxygen in 3 molecules of aluminum phosphate?

    • 1

    • 2

    • 3

    • 4

    • 12

    Correct Answer
    A. 4

Quiz Review Timeline (Updated): Jan 9, 2013 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 09, 2013
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 07, 2009
    Quiz Created by
    Junho Song
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