Test 1 first Chemistry 10 Dr Kli ne January 10 20 11 letter of last name Name Th is t est consists of a combina tion of multiple choice and other questions There should be a total of xx questions on four pages please check to make sure that they are all here Do not use your own tables scratch paper or other information Please turn off all cell phones pagers and other communicatIon devices they wif be conffscated if they make noise No food No water No gum No bathroom breaks No scratch paper A regular calculator 15 OK but you may not use graphing or programmable calculators and they will be confiscated if they are dIscover ed during the test The test wilt end 90 minutes after it starts The last page 5 is an info sheet that you may separate from the rest of the test please check out the information on said sheet before asking questions about missing in formation in the Jcxtr f the test Multiple Choice Questions These th irteen questions are worth four points each for a total of 52 points Unless it is stated otherwise in a given problem there is only one correct answer for each question Answer each question by circling all letter s corresponding to the correct cholce s If more than one answer is correct you sh ould circle all of t he co rrect ones It Is not necessary to show work for these quest ions however you may write on the exam 1 Which of the follow ing is are true sst a t e m e n ts M o e t ha n O lJ riJ 3 Cesium is an alkali metal C b Tin is a transition metalS Rad 0 n Is an able gas uv Iodin e is a halogen e None of the above statements is true Ii1 o 2 Which of the following is are representative main group elements More than one answer may be correct Alu minu m I I D Tungste n W ct n O l L2 e None of them 3 i 1 Which of the following would be expected to lose one or more electrons to form l cation More than one answer may be correct b ead I elenium c jGbbalt odium Co No e None of them 4 C has two naturally occurring isotopes Cu 63 and Cu 65 Which has the greater natural abundance f 6 5 S Th we t k j r Jf cv G i Cu b r U 63 Cu 6 5 c Neither because they are present in eq ual amounts d It is impossible to tell using any of the information provided with this test S iS are N 6 3 r u e G b 3 C IJ y h r o e p Which of t he foll owing properties or changes More than one may be a Solid carbon dioxide dry ice sublimes to the gas phase 5 P I b Etha no is separated from vodka a mixture of ethanol and water by distillation f C 1 thanol is burned reacts with oxygen to produce carbon dioxide gas and water l r Sodium ch loride dissolves in water J p e None of them OT 1 A1l i T1 e cLca I d tuCllvl r 1 bs cclZ v 6 J 1W ih l Page 1 of 5 Test l A Chem 10 Winter 20 1 6 W hich of the following is are true for the process of vaporization of water it converts from a liquid to a gas More than one answer m ay be correct Recall t hat a water molecule consists of two A atoms and one h eno atom bonded together H O H f1 a The dista nces between the water molecu les become smaller in the gas rhase b The water breaks down into hydrogen atoms and oxygen atoms N 0 C k t u u lc be C 1 Z Wli ec Q c The water breaks down into diatomi c hydrogen and diatom ic oxygen molecules H H and 0 0 f respectively d The process is exothermic c t J li Pru j 1 G r k J None of them Q b t J X W t2 la T J Which of t he following is are true statements regarding endothermic reaction s More than one may be a Th e reactants starting point have a greater ent halpy heat energy than the products i b Energy is absorbed by th e reaction as It occurs I c The reverse reaction would be exothermic j d If you hold a test tube in which one is occurring the outside of the test tUQe wOI lId feel warm H e None of the above statements Is true y i c d I c c 8 Which of the foHowin g has th I rgest v ume a 4 g of tungsten 1 S lJ 04 b 5 9 oflead I I S j 0 a A 9 of chromiu m t I S 3 f 3 9 of lead X 1 1 s 9 t 1 f fw c I d l J f l 1 d I V f 1 do J h cd 6 f y O o 30 V J 5 8 98 1 0 01 3 3 c 3 d 4 e 5 b JRyt p How many significant figu res should be in the answer to the expression 36 11 x 0 030 following I a l b 2 c L S l loe S Lt f Oe J 7 lGl i 8 4 8 E J 10 What is 20 x 10 6 written in scientific notation with the sam e number of significa nt dig its d 2 020 x 10 7 b 2 02 X 10 7 2t 020 x 10 5 2 02 X 10 s e none of these 11 How many 1 19 are in 2 x 10 4 dg a 2 x lOS 1 19 b 2 x 102 1 19 c 2 x 1 4 1 19 d 2 x 103 1J9 cJ 2 x 101 I1g f none of these 12 Which of t he following represe qts the 6eS IUme a 3 x 10 ML 3 1 LD b 3 X 10 5 m L rc j x 10 5 GL a 3 x 10 nL 3 1 10 2 l S l J L S1 lu L 13 Which of the following experiences the smalJest temperature increase 6T when 500 cal of heat energy Is applied Assume that aH samples have the same mass a t ungsten b lead c ch romium d sliver e It is impossible to tell without knowing what the mass is Page 2 of 5 Test 1A Chem 10 WInter 2011 Other Qu estions Each of the following questions is worth t he in dicated number of points for a total of 48 pOints Please be sure to provide a ll of the information requested for each question Show work with …