Exam1eveKEY - Exam 1 Key (evening). This is form J. All...

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Unformatted text preview: Exam 1 Key (evening). This is form J. All other forms are scrambled versions of form J. Each question is worth 4 points. Choose the BEST answer for each question. 1. Which of the Jfollowing is an alkaline earth metal? Q radium b. radon c. cesium d. indium e. manganese '2. \‘C-‘Thich element and symbol are incorrectly matched? a. magnesium, Mg 1). ruthenium, Ru c. iodine, I d. tin, Sn . . -— ‘ I I niobium, M. #6 fl! :5 Int“; 3. Which of the following elements is misspelled? :I. gallium I), llljlllllllT] i', si'nmlillm ll. Hll'lllln O I't'llllllT] {hm-uh Ll. \N-‘IIiL'II nl llu- Inllmving mm by t'lzlssilinl :Is :I lu-lt-rngt-m-nlls mislllrr? a. concrete V 1). apple pie!!! c. gasoline GD a and b e. all of the above 5. VWhich of the following is NOT a pure substance? a. copper metal b. ethyl alcohol, (“QT-160 ((9 soy sauce d. diatolriic oxygen gas 9‘ e. potassium permanganate, l<l\"i[1()4 Mi“!— 6. Express the number 390093 in proper scientific notation to show 4 significant figures. a. 3.900x 105 fi’cormf’y roasted 6? 3.901x105 39m. xms’ c. 3.900 x 10" 5a: mMm d. 3901. x 102 ,er e. 4.0x19;~ [(4. L‘Efii‘ Ill. 11. 12. How man}T nonmetal atoms are there in the formula of sodium phosphate, NaET’Ofi 3 \ODOLfl-h I Wm vim-9v If out,“ W5 VWhich of the following is a phvsical change? @D b. c. d. 6. alcohol evaporating V cooking bacon in a microwave oven a candle burning baking a potato all of the above How many kinds of orbitals are there in the third energy level? a. 1 n5/ 5 b 33- nfiz- 5,? ll If n33 "A; ll_ :\ gift 1, ‘/ Nl‘llll'ill alums will :Il\\-':I\-"~'. Imu- 69 b. c. d. E. The speed of the space shuttle in orbit is 7.86 x 103 m/s. How far would the space shuttle travel in 50.0 Irrilliseconds? El. ullml IIIIIHI'M'I'H nl prnlnns and t'lt't'll'HIIH'. PM; H —-l equal numl'Jers o1 neutrons and electrons. equal numbers of protons and neutrons. equal numbers of electrons, positrons and neutrons. none of the above 3.93 m 09 3.93 x1021n c. d. 6. Evaluate the following expression. Blake sure to include the correct number of significant 3.93 X 103 m 3.93 x 101m 3.93 x 10H m figures in your answer. 4.0 x 103 cm 4040. cm 4041.0 cm 4041.1 cm 4041 .1260 cm Grit-DMZM s 0-6500 “a. 1mm; 7,“ 1/3343. 5“ 5 373»? La .0590 x“— 2.2 cm + 4.32 cm + 4.01278X10'lcm + 21.826 cm 13. A compound has a freezing point of —124.3°C and a boiling point of +21.4°C. \‘C-‘rithin which temperature range would this compound undergo a change of state? a. _20 to --20°c 4"}, $461 I If! :. I 3&3 —.’0 --.'0°C ‘ P5 5 'J to 'J hf, A “It "Tats +1”; c. —120 to —100 0C ’5’— d. 0 to 20°C fl},- e. 25 to 50°C a,» “5-D ‘99 14. The density’ of water is 1.0 g/ Express this value in grams per cubic metercma) 3' 1'0 x 10—2 g/ml 160M ‘2'»! nuts} caviar? I}: a” b. 1.0 x 10—6 g/m’fl” fihwnim’ a. 3 o _. Cl! =9) 5 c. 1.0 x10“ g/m'” 3 1.0 10“ r 1.0 New _, c Q X [lg/In? #7- .» {:0 (it/0%; e. 1.0 x 10 g/m‘ .afl _ 1.5!. The stable ion Formed when a neutral cobalt atom loses two electrons is: 2|l. (in. CO {ll-“Jr”!- }. l in' {:u' 2'7,» 2 7” Coal" ll. {Jul 17¢." zyd- t'. l ,1 1' in. Solids have: a. definite volume“ b. definite shape independent ofits container“ c. variable shape dependent on its container @ a and b e. a and c 17. Group TA elements have 7 valence electrons when existing as neutral atoms. 3- 1 “9 F [5&362’2‘ C' 3 7t '3‘! VOL 5"” d. 5 T 18. The alkaline earth metals have similar chemical properties because they a. are isoelectronic."='>mfl'; h Mt; f Janka?! b. have the same number of valence electrons. / c. are in the same group (family) .L/ d. a and 1) bands 19. 20. :71. 22. '23. $7335.01 If 7’50 cal of heat raises the temperature of 10.0 g of an unknown metal from 25.0 to 60.0 0C, what is the specific heat of the metal? a. 2.63 X 104 cal/cr'oC a, a}. F “gaggLM h. 3.81x10 cal/g- c C mgr (,,,,J)(;$.a.c) c. 4.67 x 10'2 cal/g'OC 6 :rr azilical '72; d. 4.67 cal/g'oC 0.214 cal/g'oC Calculate the mass of a liquid if the volume it occupies is 14.1 mL and its density is 0.892 g/mL. G? 12.6% n, 1. (.32 x10‘2 r MML 0' 4—5 ‘5 a. ) 130 103 3g ( ’L $775 C. ._ X 'g d. 158;; 3‘3 41‘ e. 153;; 1.1.5) Plll lln- l—Hlltr\\-'ll]}{lllH1'tlt'1'til—lllt'l't'il‘illli"ITIIIRR. 24mm» Infill Small ZAMUL I: Irilillm, _'II II: Ilt'llll'tlll III: t-Iu'lnm IV: drlllt‘rillm, || .7 ;.. [[ m [-. [\-" TH (E) [[l -. [[ [\-" [ l'. [-- [l- [H -- [\"' ll. [ll '- ll l '- l\" e. H < IV <1 < III T? I \\-' hat should X be to correctly complete the isotope symbol 2-3 X .3 69 V “Latin 23,, 1). Cr c. Na v d. Te e. Cu VWhich is the correct symbol for the ion with 28 protons, 24 neutrons, and 25 electrons? ’ =55? a. gm” ()1,- 3 (as a MM ,9 1). 233C?” 43 ’3” Q 52m“ ""315 A! a P 4M 2f : zwz‘f ‘-'- 51 d. SEER}— -. . 2. 3+ e. ngi' ' S. f 3,3 24. Identify the element in the alkali metal family whose 1+ ion contains 18 electrons. w 9 potassium L [A If; h. argon a l ’9’, c. sodium ( cl. magnesium K e. calcium 25. Compute the number of atoms in a 20.0 ng sample of silver. a. 1.30X10'Ratoms Czach :5 X (and. Xiflzw’od 3’ l). 3.58 X 10’12 atoms 10’.” “‘“fim’v’fé ' ’07” “gm @ 1.12 X 10H atoms ,9? . it cull-VS d. 3.08 x 10—14 atoms ,0 "9 e. 1.12 x 10'“ atoms W 26. \Which pair (group and valence shell electron configuration) contains an error? a. nohlegas, nsgnpl‘ I). :Illlellllt' t'ill'll] Im-Izll, us" l'. llzllngt'm ns'lnp‘ - I ll. :Illlell Im-lnL ns 0 .-‘-’."“"l"‘l-"\»'Xl mini}; [I :I llt'llll'illillnln oi HIIllIIl'l'IIIH'II muss numl'n-rol.“12_|m\\' manyt-It-L'Irnns:II't-pn-st-nl? a. .52 L {LP Marl/(We. 1‘ (L l). 18 c. 7’ a} e. 15 28. \‘l-‘That is the ground state electron configuration for a neutral vanadium atom? a. 1s22s22pf‘3s23pi’3d?’ L) Zip J 23 a, l). 1s22s22pfl3s23plfficlg-ilsgtlcl3 c [1.] 4.24.; xszzfizfizéyvesz} @ [.sr14333c1* ma e. [Kr]3d'fl’ . .5 . 29. Which represents the Ground stae electron configuration for a neutral phosphorus atom? 1s Lt LL 2p L L L 7:, "NW b- Is Lt L 2p L L L L72, c. 1-«L 2-«L 2pLLL3-«L3pLLr9c. d- Is L1 25 LL 2p LL LL Lt it 3P ML had-"sham? lsfl 2.211 ZPLLLLLL 351i 3Pl—l—j—(xqfd mummy. 30. 31. 34. ’3": all'noédéf In? tivvflzfllsmzuuvnr*¢ts aL-ca‘avE¢LF£? «if fi$m45fii£ rtcif crzlbak \‘C-‘Thich factor would let you correctly convert micrometers (pm) to decimeters (dm)? a. b. c. d. e. [g‘flédm/um 10—7L-l1‘n/ttm cured MIW I; ,o-SIM/f” M > U-M'X :aayn1% "” ’0’?” 5o! fqm‘Iatam 10'2 dm/ pm 102 dm/ um 104 dm /_uim - A: 3 - Consider ,,_Ca +. The atomic number, number of protons, mass number, number of neutrons and number ofélectrons are iin order): 3 El. b. 69 d. 6. \‘fhit'h has mon- pi'nlnns llmn tit-(Irons? W 90 29 igasiuérfi‘f'lyclgrprc‘.5¢r 2q4q1a2q22 40,20,40,20,18 20,20,40,20,18 20,20,20,40,20 none of the above LP”) a, ’91:; an! pill-(Lauer mn'c. ML»; M ¢/¢.J/m5 More. 69 ‘MM 6? :I '/.li't't)llllll}] alum lllt' Hllllltlt' lull, S" [9? 13¢. llu-pnlnssilim lH'tialt‘, |\' 4| llu- potassium inll, |\ al,al. C «yawn- ar¢4~d6flnf ,n z:e: 6 flgwlv‘vc/m c713, lllt' || isnlnpt- anx-‘n as Il'lllIIIH, '|| A piece of lead sinks when it is dropped into a pool of liquid bromine. This means that El. (9 c. d. E. the density of lead is less than one. the density of lead is more than the density of bromine. the density of lead is less than the specific gravity of lead. the atomic weight of lead is less than the atomic weight of bromine. the specific gravity oflead is less than the specific gravity of bromine. VWhich nonmetal will combine with rubidium to form a 1:1 ionic compound? 69 b. c. d. e. bromine“ Maud Rs phosphorus xenon 8r carbon oxygen [vb VWhich type of electromagnetic radiation has the highest energy? 21. (9 c. d. E. (b3; 5) orange light {gfinar£§) indigo light [l-wat ,& £0Y§BIV “V green light I I I I 7‘ . mg. red light infrared light 36. .314. 39. 40. 95°F is the same as: El. ([37 c. d. 6. 21°C P’s/.52, *SL 350C (F-3ngsc4'3z'32. 85°C .. :42. 75v“ 171°C FwiLHXC“ ‘9 C'W ‘WF’ 203°C g: 35’; Suppose 25 joules is absorbed by each of the following metal samples. VJC-‘Thich has the larUest temperature increase? @ gnu-“fl... Wan-nu— Gold, 200 U, s ecific heat : 0.031 cal/U “TE: Sm”, m“; . h b p b {ow «lulu #Ifeaéw 1). gold, 400 g, specific heat I 0.031 cal/g ‘OC “ ’ c. copper, 200 g, specific heat I 0.091 cal/g 'GC Mk6“ 5“? 40 Cl. steel, 200 g, specific heat I 0.122 cal/g '°C “‘6‘” '5" W ' e. steel, 400 g, specific heat I 0.122 cal/g ‘GC .-"\n llT]:I}{lllil1'\_-‘t'lt'lllt'lll ‘I'k.m'¢'||1'snalm'allyas Ill"-'n Y)». Illl :IIltl ‘)|l”-n Y7. Illil. 'I'lu' :Ilnmit' Wright 1111' this t'lt'lllt'lll \\-‘nl|ltl l'n' t'lth'H'l In 2|. l). t'. 69 l'. A sincrle {orbital may, at most, contain M El. @ c. d. e. flaw“. 2'! 'i J :IIHII. I,“ r 90,. in aw HP“; ;I|HI|.¢:“) Q'DJSFO m; ¢ ’04. IlliHaIHII. H142". :Ilrillfiw'5-{vo -- {0‘1} MA.» 575% firs m "’55 Var/of 1 electron. 2 electrons. 5 electrons. M7 2&4 WV 4.5L 4° 32.] 10 electrons. CM hf v 14 electrons. W-‘Thich is the correct electron configuration for a neutral cadmium atom? a. l). C. CD cut #8:, 23441 L/mu'll ii" 1 éfacbn‘rms *‘L If" arLIM. [Sr] Sd‘” [Kr] 5s25dm 1s22s22pfi3s23pfi4s23d‘"4p65s24dg’ 1s22s22pf‘3s23pf‘4s23cl1 r]4p(‘.:Js24t'll n 1s22s22p(’3s23p(‘4s23d1 r14-p(‘5.s24(11 UFJPGGSEEdI n ...
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Exam1eveKEY - Exam 1 Key (evening). This is form J. All...

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