مده 1. 1. MgBr 2. H* workup MgBr 2. H* workup

Is there any downside to using a heterogenous system over a homogenous system? Explain

pneumonia is characterized by fever (a body temperature) does the patient have a body temperturr that indicates that he has pneumonia? justify your answer with suitable caculations.

Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on.

Molecular formula.   Molar mass (g.mol-1).   ΔcH0 (kJ.mol-1) Petrol C8H18 * 114 - 5470 Diesel C20H42 * 282 - 8090 Natural gas. CH4 16 - 890 Hydrogen. H2 2 - 286 Methanol. CH3OH 32 - 726 *Petrol and diesel are complex mixtures of hydrocarbons. On average, their properties resemble those of C8H18 and C20H42, respectively. 1.1) Calculate the energy density (in kJ.g-1) for all the fuels in the table above. Use the molar masses supplied in the table. 1.2) Why would you say that Space Shuttles rather use hydrogen as its primary fuel source instead of one of the other fuels in the table? 1.3) Formula 1 racing cars use petrol as their fuel source. In the USA, “Indy cars” use methanol as fuel source and in South Africa farmers use diesel as fuel source for their tractors. If all these motors perform equally optimally, which vehicle is the most fuel efficient? Give a reason for your answer.

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1. Fill in the boxes below with the correct reagent, reactant or product (5 (а) OH (b) 1. (CH),СHMgBr 2. H,0 ÓH (c) 1. L¡AIH, 2. НО (d) CH;OH H,SO4 (e) 1. 2 (CH3),CHMgBr, 2. H,0 ÓH (f) 1. LIAIH, 2. H,0 HO,

← = Account Balance 1 substance Elanation 7 O STATES OF MATTER Predicting the relative boiling points of pure substances A 52°F Mostly cloudy B A Q Z Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. 2 https://www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBMBkpcnaFu0F7Uj... X chemical symbol, chemical formula or Lewis structure S .. : Cl: W CaCl₂ 0=N-CI: .. : Cl: / C=C Check Schedule Builder CL₂ **** # 3 E D .. : Cl: : Cl: .. H 14 td-jolch. $ 4 R X boiling point (Choose one) ✓ (Choose one) v (Choose one) ✓ F (Choose one) ✓ 1 do % 5 V Give to Queensborough X T G 6 L B & 27 H N * Announcements-2022 F. X All 10 ✔ 8 J DE ( || M 9 K ho ) ALEKS - Chisom Obidieg X + ——— O Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibil Ⓒ 40 D 12:42 PM 11/3/2022 O D…

Constants: • c = 2.9979 x 108 m/s h = 6.626 x 10-34 J s per one photon • R = 8.314 J/(K mol) = 0.08206 L atm/(K mol) NA = 6.022 x 1023 particles/mol RH = 1.097 x 107 m1 = 2.178 x 10-18 J . . You have an aqueous Glucose solution that is 12.0% Glucose by mass. What is the molality of Glucose in the solution? Molar Mass of Water = 18.015 g/mol Molar Mass of Glucose 180.16 g/mol =

f) 엿 1- 2- H+ Br 3- Ht, H2O 1-O3, CH2Cl2, -78 °C 2- CH3SCH3 CgH1402