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![Vraag 3: Wat is die hoofproduk van die reaksie in Figuur 3? [Gee 'n SMILES-
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Figuur 3
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KMnO4
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- ay... Q Search Layout Open in Desktop App Search D Fody) v 16 B IU ev Av ニ三 ... 2. A shiny solid conducts electricity as a solid but does not dissolve at all in water. It is bendable. What is it? (Metallic, ionic, molecular solid, or network solid)I. г. H3CO 0 оснз ино нзот, нго ночно H2504Which of the rules is being broken in the image below? Explain why it is incorrect, then explain how to re-do it correctly. 1s 2s 2p B I U
- Br 10 애 NaNitz 2Chrome File Edit View History Bookmarks People Tab Window Help * 30% (4) Sat 2:00 PM Q O E 0 Chem101 O General Chemistry I (LAB SC) x i app.101edu.co Apps M Gmail O YouTube Maps Translate 3 https://www.carth.. Google Chrome isn't your default browser Set as default Question 7 of 8 Submit Using the equations N2 (g) + O2 (g) → 2 NO (g) AH° = 180.6 kJ/mol N2 (g) + 3 H2 (g) → 2 NH3 (g) AH° = -91.8 kJ/mol 2 H2 (g) + O2 (g) → 2 H2O (g) AH° = -483.7 kJ/mol kJ/mol Determine the enthalpy for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g). 1. 3 INFOR 4 6 Coings t C The MC Uhase Stan 8 9 +/- x 100 + 10.062 122 24 tv MacBook Air 888 DII F4 F5 F7 F9 12 %23 24 & * 2 4 6 8 %3D delete Q W E R Y A S D F G H J L return > C VThe accepted value of R is 8.314 J mol-¹ K-¹. Which of the following units are exactly equivalent to this numerical value (magnitude) of R when it's expressed in those units? Select as many answers as appropriate however marks will be deducted for incorrect guesses. Select one or more: Obar L mol-¹ K-¹ OkPa m³ mol-¹ K-¹ OkPa L mol-¹ K-¹ O Pa L mol-¹ K-1 Pa m³ mol-¹ K-1
- Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. relative pH of 0.1 M aqueous solution species H20 4 H,PO4 HNO, (Choose one) NO2 7 OH (Choose one) HF (Choose one) ▼Describe in your own words the Kinetic Molecular Theory of gases. The Kinetic Molecular Theory of gases tells us that the energy content of any gas is related only to its temperature. It also tells us that it is possible to compute the "RMS" (root mean squared) velocity of any gas molecule if you know its formula weight and its temperature. Using this information describe how you might compute the RMS velocity of sulfur dioxide (SO2) in the atmosphere of the planet Venus (T = 820 F), the RMS velocity of oxygen (O2) in the atmosphere of Earth (T = 50 F), or the RMS velocity of carbon dioxide (CO2) in the atmosphere of Mars (T = - 80 F).Ethylene (CH₂CH₂) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0 × 100 kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH3CH3) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 50.0 L reaction tank with 20.0 atm of ethane gas and raises the temperature to 600. °C. She believes K = 0.70 at this temperature. р alo Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits. Ar Note for advanced students: the engineer may be mistaken about the correct value of K, and the mass percent of ethylene you calculate may not be what she actually observes. %…
- The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from gaseous propylene, ammonia, and oxygen: 2C3H6(g) + 2NH3(g) + 302(g) → 2C;H;N(g)+ 6H2O(g) Assuming 100% yield, determine the mass of acrylonitrile which can be produced from the mixture below: Mass Reactant 3.05x102 g propylene 5.00 x 102 g ammonia 1.00х 103 g охуgen g = mass of acrylonitrile produced What mass of water is formed from your mixture? mass of water formed = Calculate the mass (in grams) of each reactant after the reaction is complete: Reactant Mass remaining propylene ammonia охуgen▼ Part F telavancin, C80 H106 Cl2N11O27P Express your answer in percent to three significant figures. ΤΙ ΑΣΦΑ %0 24.6 Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? %7. A methanol powered car produces CO₂ when it runs. Does that mean it is contributing to global warming? (A) No, if the methanol was produced from recently living biomass (B) Yes, if the methanol was produced from recently living biomass (C) Yes, if the methanol was produced from solar power (D) No, if the methanol was produced from natural gas. 8. The density of compressed natural gas is 60 grams per liter. If a car were powered by an engine that burned natural gas (similar to a gasoline engine), how large a compressed natural gas tank would it need to have the same range as a standard gasoline car? (A) about 3 times bigger than a standard car's gasoline tank (B) about the same as a standard car's gasoline tank (C) about 20 times bigger than a standard car's gasoline tank (D) about 10 times bigger than a standard car's gasoline tank