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Tab Minbox (1,600)-fantilOudeledu X Mail- Francesca A Tantillo-Out xEXP #12: Geometry-CHM150-2x Aktiv Chemistry ← → C < Esc app.101edu.co Mostly sunny O ! D 7 A Silane, SiH., is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for semiconductor and photovoltaic applications. Given the electron configuration of Si is [Ne]3s 3p2, how many valence electrons does Si have? Z 2 W S X # 3 E D $ 4 C OL R F % 5 FS T Question 18.b of 23 V G ^ 6 Y B & 7 H PrtScn U N 8 J Home ( 9 M K X End O 1 4 7 +/- PgUp 0 2 5 8 1. P 3 - 6 9 0 Pgon $12 0 APD + Update Submit C x 100 5:21 PM 7/6/2022 X 10 Del Backspace

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ersion xxam e... /myct/itemView?assignmentProblemID=191818234 ent the basis ween and e of or S d ror f5 % 5 X ▸ Part A Final Exam America.... TN Free Tracing Letter... Letter A | Workshee... Submit Part B Part C 16 Solving Chemical Problems G| ΑΣΦ 3 10 A In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 28.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1 km = 0.6214 mi and 1 gal = 3.78] Express your answer numerically in liters. ► View Available Hint(s) 6 4- & C hp 7 X f8 a + MasteringChemistry: Homework x * ? 8 L Order 3094227- Es... fg 9 h fio ) fi O Review | Constants | Periodic Table f12 + O 6 of 10 ins = M 1:13 PM 8/16/2022 prt sc > del backs

Calculate the quanity of ecergy required to vapariz 150. ml. of Cll;COCl, at 25 "C. The density af ClH;COCHz is 0.780 g'il, and the vapecizaicn enthapy is 29.1 kJimal.

II. Determining the Volume of 0, Produced from the H20, Solution code number of H2O, solution Equate 1.02 density of H,O2 solution, g mL¯1 3 mass percent H,O2 in H2O2 solution, % determination 1 2 3 PV(H2O)=20. 070 5 5 5 volume of H2O2 solution used, mL 22.22 22.22 22.2 water temperature, °C 29.55 29.55 29.55 barometric pressure, in. Hg barometric pressure, torr BP = (P in. Hg) (25.4 torr/1 in.Hg) pressure of collected O2 at water temperature, torr P(02) = BP-P(H2O VARRE-temperature, K 49.3 50.2 50.1 second buret reading, mL first buret reading, mL volume of O, collected at laboratory T and P, mL P(H2O vap) = 15.5

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Tab Caps M Inbox (1,600)-fantil@udeledu X Mail- Francesca A Tantillo-Out X x ← C app.101edu.co < DA 。。 A 88°F ME Mostly sunny Fn Z 2 W S X 3 Alt E Silane, SiH, is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for semiconductor and photovoltaic applications. D SiH. has 8 total valence electrons. Draw the Lewis structure for SiH, that minimizes the formal charges on all atoms. $ 4 EXP DOP #12: Geometry-CHM150xAktw Chemistry C R F Pll S % 5 T Question 18.d of 23 V G Click to draw a new structure 6 Y + B * H & 7 PrtScn 8 N Home UL U M ( 9 K K End na O POUP $11 0 L P Alt A PgDn A D 90% B 0 Update Submit 6:19 PM D X 7 Del Backss (

Vindow 9 eq d: eq req Ereg Important values if needed... | b... eq eq ons 0 Ereg Help MAY 11 In progress Submit Answer prod01-cnow-owl.cengagenow.com 2HgO(s) → 2Hg(l) + O₂(g) g mercury(II) oxide 65 [Review Topics] [References] Use the References to access important values if needed for this question. According to the following reaction, how many grams of mercury(II) oxide are necessary to form 0.760 moles oxygen gas? % Retry Entire Group sty 6 Module 2 | OWLv2 & 7 9 more group attempts remaining MacBook Pro Sall * 8 A O Ơ 0 80 COWLV2 | Online teaching and learning resource from C... Previous Email Instructor Next Thu May 11 10:32 P Save and Exit zoom + BB ions olleg 2.39 F eams ing 51 ents gs

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