Chemistry Quiz: section 1



Chemistry Chapter 8 Test Study Guide Full Name:__________________________________ Folder # _______

Chemical Equations

Match-up: ( 2 points each )

____ 1- Coefficient A- A chemical reaction in which the products re-form the original reactants.

____ 2- Word Equation B- A small whole number that appears in front of a formula in a chemical equation.

____ 3- Formula Equation C- An equation in which the reactants and products in a chemical reaction are represented by words.

____ 4- Reversible Reaction D- An equation that represents, with symbols and formulas, the reactants and products in a chemical reaction.

True or False: Circle T for True and F for False. ( 1 point each )

5) T / F : A thermite reaction can produce temperatures in excess of 350o.

6) T / F : The physical state of hydrogen at room temperature is liquid.

7) T / F : The physical state of nitrogen at room temperature is gas.

8) T / F : The physical state of bromine at room temperature is solid.

9) T / F : The physical state of iodine at room temperature is liquid.

10) T / F : Water can be made conductive by adding a small amount of salt.

Short Answer: ( 5 points each )

11) Explain the difference between word equations, formula equations, and chemical equations.

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12) Write the chemical equation for the reaction in which aqueous solutions of sulfuric acid and sodium hydroxide react to form aqueous sodium sulfate and water.

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13) Translate the following chemical equation into a word equation.

2HNO3(aq) + Mg(OH)2(aq) → Mg(NO3)2(aq) + 2H2O(liq).

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Chemical Reactions

Match-up: ( 2 points each )

____ 14- synthesis reaction A- A type of chemical reaction in which two or more substances combine to form a new compound..

____ 15- composition reaction B- A type of chemical reaction in which a single compound undergoes a reaction that produces two or more simpler substances.

____ 16- decomposition reaction C- A type of chemical reaction in which one element replaces a similar element in a compound.

____ 17- electrolysis D- A type of chemical reaction in which the ions of two compounds exchange places in an aqueous solution to form two new compounds.

____ 18- single-replacement reaction E- A type of chemical reaction in which a substance combines with oxygen releasing a large amount of energy in the form of light and heat.

____ 19- displacement reaction F- The decomposition of a substance by electric current.

____ 20- double-replacement reaction G- Compounds made-up of carbon and hydrogen.

____ 21- ionic reaction H- A process that leads to the transformation of one set of chemical substances to another.

____ 22-double-displacement reaction I- A compound or substance that has been purified or prepared.

____ 23-single-displacement reaction J- Happens when two or more molecules interact and something happens.

____ 24- combustion reaction K- Another word for a synthesis reaction.

____ 25- hydrocarbons L- Another word for a single-replacement reaction.

____ 26- chemical M- Another word for a double-replacement reactioin.

____ 27- reaction N- No such thing.

____ 28- chemical reaction O- No such thing.

True or False: Circle T for True and F for False. ( 1 point each )

29) T / F : If the supply of oxygen is limited, carbon monoxide also forms when carbon is burned in air.

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Activity Series

Multiple Choice: Circle the letter that corresponds to the choice that best fits the task. ( 2 points each )

30) The definition of “Activity Series” is:

A- A list of elements organized according to the ease with which they undergo certain chemical reactions.

B- A list of elements where the most active element is placed at the top.

C- A list of elements where the least active element is placed at the bottom.

D- A list of elements arranged where each element listed can, in a chemical reaction, replace the elements listed below it but cannot replace the elements above it.

E- A list of elements arranged according to how easy they gain or lose electrons.

F- All of the above.

True or False: ( 1 point each )

31) T / F : Zinc atoms have a greater tendency to lose electrons than do copper atoms.

32) T / F : Aluminum can replace zinc.

33) T / F : Cobalt can replace sodium.

34) T / F : Flourine is the most active halogen.

35) T / F : Any metal above magnesium replaces hydrogen from water.

36) T / F : Any metal above hydrogen reacts with acids, replacing hydrogen.

37) T / F : Elements near the bottom of the activity series are never found free in nature.

38) T / F : Elements near the top of the series are often found free in nature.

Short Answer: Refer to Table 8-3 on the back of this page for the following questions. ( 3 points each )

39) Predict whether or not the following reaction will occur; ( circle one ) YES or NO

If it will occur ( YES ), complete and balance the equation.

Ni (s) + H2O (liq) (

40) Predict whether or not the following reaction will occur; ( circle one ) YES or NO

If it will occur ( YES ), complete and balance the equation.

Br2 (liq) + KI (aq) (

41) Predict whether or not the following reaction will occur; ( circle one ) YES or NO

If it will occur ( YES ), complete and balance the equation.

Au (s) + HCl (aq) (

42) Predict whether or not the following reaction will occur; ( circle one ) YES or NO

If it will occur ( YES ), complete and balance the equation.

Cd (s) + HCl (aq) (

43) Predict whether or not the following reaction will occur; ( circle one ) YES or NO

If it will occur ( YES ), complete and balance the equation.

Mg (s) + Co(NO3)2 (

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Table 8-3

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