Flora - Lab 4

* Dementia Frien x (2 unread) - dtɛ x Lobby | Top Hat Watch Gilmore A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvdWKW_BBZZ16tTytly Spotify Web Playe... M Common Ethical D.. O THERMOCHEMISTRY Calculating kinetic energy m Calculate the kinetic energy of a 34. g bullet moving at a speed of 458. Round your answer to 2 significant digits. Explanation Check MAR 14

Angel Teran - Learn phamacy Ô https://www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8 O THERMOCHEMISTRY Calculating pressure-volume work A mixture of krypton and argon gas is compressed from a volume of 87.0 L to a volume of 43.0 L, while the pressure is held constant at 90.0 atm, Calculate the work done on the gas mixture. Round your answer to 3 significant digits, and be sure it has the correct sign (positive or negative). Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Prive O Type here to search

* [ASSESSMENT IN PROGRESS] Su x E May 31, 2021-June 4, 2021 6 X Clever | Log in E summitlearning.org/my/assessment takes/64731344/q/1 * https://docs.google. Portfolio Problems... Jacoby Finley-Unti. Jacoby Finley Energy 1:Question 1 What is a difference between a 90°C cup of water and a 40°C cup of water? Assume both cups of water are the same except for their temperature. Select one: The 40°C water contains different kinds of molecules than the 90°C water. A particle taken from the 90°C water will be larger than one from the 40°C water. The 90°C water has more thermal energy than the 40°C water. The 40°C water contains fewer molecules than the 90°C water.

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ducation.com/flow/connect.html (Thermochemistry: Energy FL.. i Saved 2 attempts left Check my work Be sure to answer all parts. Isooctane (C3H18; d=0.692 g/mL) is used as the fuel during a test of a new automobile engine. How much energy (in kJ) is released by complete combustion of 24.8 gal of isooctane to gases (AH =-5.44 x 10 kJ/mol)? Enter your answer in scientific notation. -3.09 arch 99+ DELL

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First Statement: The atmosphere is composed mostly of helium and oxygen, with traces of other gases such as carbon dioxide and water vapor. Second Statement: The stratosphere is important because it contains nitrogen, which blocks harmful ultraviolet radiation from the Sun. - * First statement is incorrect and second statement is correct Both statements are correct Both statements are incorrect O First statement is correct and second statement is incorrect

Consider this information about two greenhouse gases, CH4 and N2O. Which statement is correct for CH4? (10) Greenhouse Gas Abundance in Troposphere, % Factor N20 160 3.1 x 10-5 CH4 30 1.8 x 104 CH4 is less effective greenhouse gas and there is less of it in troposphere. )) CH4 is less effective greenhouse gas and there is more of it in troposphere. )) CH4 is less effective green house gas and there is less of it in troposphere. ) CH4 is more effective green house gas and there is more of it in troposphere.

Saved 5 (Thermochemistry: Energy FL 6 1 attempts left Check my work Be sure to answer all parts. Isooctane (CSH18; d=0.692 g/mL) is used as the fuel during a test of a new automobile engine. How much energy (in kJ) is released by complete combustion of 24.8 gal of isooctane to gases (AH =-5.44 x 10 kJ/mol)? Enter your answer in scientific notation. -3.10 x 106 kJ 23 of 25 E Next > search (99+ DELL

Please show all work for both questions please answer both questions 5 and 6

E DetaMath 6 Quiz Chemistry Spring Final x D A sample of helium gas has xG 391ml of gas with a tempera x G number of electrons on a tric + -> b cfbisd.instructure.com/courses/85698/quizzes/390093/take/questions/2865049 Q * e D GO D CFB A Pearson Realize 6 Dashboard @ Student Resources E Google Docs creat A google ciassroom O Nearpod Welcome- O Meeting is in progre O Reading list Balance the following reaction: Al + Fe203 → Al203 + Fe *remember to enter a 1 for coefficient is there is no change. US VO 3:53 esc @ #3 $ bac 3 4 7 8. 9. W e t y a d. f k

Kw (at 0 K) is 2.00E-01.  What is the [H3O+]? Teacher gave the answer of 4.47E-01 but I don't understand how he got that..... what formula?   I'm figuring I change from Kelvin to Celsius but then what?

Chrome 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 V

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I need the answer for question 2 please

st for the P X https://www-awn.aleks.com/alekscgi/x/Isl.exe) 10_ O THERMOCHEMISTRY Understanding how kinetic energy scales with mass and speed Decide how the objects in the following table would be listed, if they were listed in order of increasing kinetic energy. That is, select "1" next to the object with the lowest kinetic energy, select "2" next to the object with the second lowest kinetic energy, and so on. object kinetic nergy A 13. g ball moving at 12.4 m/s. (choose one) v A 63. g ball moving at 12.4 m/s. (choose one) v A 24. g ball moving at 12.4 m/s. (choose one) A 13. g ball moving at 3.2 m/s. (choose one) v Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of UseI Privacy Accessibility P Type here to search 1:47 PM (? 3/25/2021

A waste heat exchanger is used to absorb the energy from the complete combustion of hydrogen sulfide gas. What volume of water undergoing a temperature change of 52 degrees Celsius is required to absorb all of the energy from the burning of 12 kg of hydrogen sulfide? * 0.85 mL 0.84 L 840 g 0.85 g please explain and give correct answer

Determine the Kinetic energy of 1 mole oxygen at 250 K. (R = 8.314 J/K.mol). (20 pts)

#3, Answer is already there. Just need to learn how to do the work.

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Course Home Course Home Syllabus Scores Pearson eText Document Sharing User Settings Course Tools 76°F Mostly sunny X Qbartebly - Search b My Questions | bartleby x + https://openvellum.ecollege.com/course.html?courseld=17044720&OpenVellumHMAC=02ab23286d132bee2c1ff7fb0c33c5f5#10001 Problem 12.50 Part A Zinc sulfide, ZnS, crystallizes in a face-centered cubic unit cell where the cations occupy one of the two types of tetrahedral holes. How many Zn²+ ions touch each S2-ion? Express your answer as an integer. ΨΕ ΑΣΦ S Zn > Submit Request Answer Part B How many S2 ions touch each Zn²+ ion? Express your answer as an integer. IVE ΑΣΦ Request Answer Submit < Return to Assignment Provide Feedback Pearson ? ions ? ions A o 7 of 7 Review | Constants | Periodic Table 5:39 PM 5/31/2022 E

Please very short answers for question 8 and 9

R ★ Bookmarks XM M up up app.101edu.co New folder Type here to search Bb 2019-05-02.jpg (10... S xx U₂ up S S b Photo - Google Ph... Question 9 of 11 As the temperature decreases, what can be said about a sample of gas particles? A) The kinetic energy of the gas particles will increase. B) The average speed of the gas particles will decrease. C) The mass of the gas particles will decrease as kinetic energy decreases. H O B 5. 23 *** (62) X b + 50°F 18 Other bookmarks Submit 10:51 PM 4/29/2022

IM IN B General Chemistry 4th Edition McQuarrie Rock Gallogly OUniversity Science Books presented by Macmillan Learning How much work, w, must be done on a system to decrease its volume from 15.0 L to 7.0 L by exerting a constant pressure of 3.0 atm? Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books MacBook Pro Q Search or enter website name & %24 6. 7. 4. 5. } R. E. K. H. g8 ontion

O Macmillan Learning An herbicide contains only C, H, Cl, and N. The complete combustion of a 200.0 mg sample of the herbicide in excess oxygen produced 209.2 mL of CO₂ and 122.0 mL of H₂O vapor at STP. A separate analysis determined the 200.0 mg sample contained 55.14 mg Cl. Determine the percent composition of the herbicide. percent carbon: percent hydrogen: percent chlorine: percent nitrogen: Determine the empirical formula of the herbicide. empirical formula: The herbicide has a molar mass of 257.16 g/mol. What is the molecular formula of the herbicide? molecular formula: % % % %

It’s number 4! I don’t know how to solve it. If you can, thank you and please show the steps!!

ducation.com/flow/connect.html Saved (Thermochemistry: Energy FL.. i 1 attempts left Check my work Be sure to answer all parts. A chemical engineer studying the properties of fuels placed 1.030 g of a hydrocarbon in the bomb of a calorimeter and filled it with O, gas. The bomb was immersed in 2.550 L of water and the reaction initiated. The water temperature rose from 20.00°C to 23.55°C. If the calorimeter (excluding the water) had a heat capacity of 403 J/K, what was the heat of reaction for combustion (qy) per gram of the fuel? (d for water =1.00 g/mL; c for water = 4.184 J/g °C.) Enter your answer in scientific notation. 3.816 Prey 15 of 25 Next > earch 99+ DELL