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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. _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 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. ______________________________________________________________________________________ 13) Translate the following chemical equation into a word equation. 2HNO3(aq) + Mg(OH)2(aq) → Mg(NO3)2(aq) + 2H2O(liq). ______________________________________________________________________________________ ______________________________________________________________________________________ *** continued *** Chemical Reactions Match-up: ( 2 points each ) ____ 14- synthesis reaction ____ 19- displacement reaction A- A type of chemical reaction in which two or more substances combine to form a new compound.. B- A type of chemical reaction in which a single compound undergoes a reaction that produces two or more simpler substances. C- A type of chemical reaction in which one element replaces a similar element in a compound. D- A type of chemical reaction in which the ions of two compounds exchange places in an aqueous solution to form two new compounds. 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. F- The decomposition of a substance by electric current. ____ 20- double-replacement reaction G- Compounds made-up of carbon and hydrogen. ____ 15- composition reaction ____ 16- decomposition reaction ____ 17- electrolysis ____ 18- single-replacement reaction ____ 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. *** continued *** 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 32) T 33) T 34) T 35) T 36) T 37) T 38) T / / / / / / / / F: F: F: F: F: F: F: F: Zinc atoms have a greater tendency to lose electrons than do copper atoms. Aluminum can replace zinc. Cobalt can replace sodium. Flourine is the most active halogen. Any metal above magnesium replaces hydrogen from water. Any metal above hydrogen reacts with acids, replacing hydrogen. Elements near the bottom of the activity series are never found free in nature. 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 ) If it will occur ( YES ), complete and balance the equation. YES or NO Ni (s) + H2O (liq) 40) Predict whether or not the following reaction will occur; ( circle one ) If it will occur ( YES ), complete and balance the equation. YES or NO Br2 (liq) + KI (aq) 41) Predict whether or not the following reaction will occur; ( circle one ) If it will occur ( YES ), complete and balance the equation. YES or NO Au (s) + HCl (aq) 42) Predict whether or not the following reaction will occur; ( circle one ) If it will occur ( YES ), complete and balance the equation. YES or NO Cd (s) + HCl (aq) 43) Predict whether or not the following reaction will occur; ( circle one ) If it will occur ( YES ), complete and balance the equation. Mg (s) + Co(NO3)2 *** continued *** YES or NO Table 8-3