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 energy A 7600. kg satellite moving at 4200. m/s. (choose one) v A 7000. kg satellite moving at 4200, m/s. (choose one) A 6500, kg satellite moving at 4000, m/s. (choose one) v A 6500. kg satellite moving at 4200. m/s. (choose one) v ?

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 energy A 7600. kg satellite moving at 4200. m/s. (choose one) v A 7000. kg satellite moving at 4200, m/s. (choose one) A 6500, kg satellite moving at 4000, m/s. (choose one) v A 6500. kg satellite moving at 4200. m/s. (choose one) v ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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I need to find to what equals to 320 J and I’m kinda stuck on this.
O THERMOCHEMISTRY 15 Using Hess's Law to calculate net reaction enthalpy Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. In the first step, nitrogen and hydrogen react to form ammonia: N,(9) + 3 H,(g) → 2 NH;(9) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric acid and water: NH,(g) + 20,(g) → HNO3(g) + H,0(g) AH=-330. kJ Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ.
A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial internal energy, U,, is 61.2 kJ, what is the final value of U,? Select one: a. 89.7 kJ. b. 82.8 k) c. 46.5 kJ d. 32.7 kJ e. 75.9 k)
Pls help ASAP. Pls show all of your work and give ansewrs in significant figures. Pls write neatly and explain each step.
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 energy A 11. g ball moving at 8.1 m/s. (choose one) A 46. g ball moving at 8.1 m/s. (choose one) A 46. g ball moving at 12.3 m/s. (choose one) v A 60. g ball moving at 12.3 m/s. (choose one)
Constants Periodic Table You may want to reference (Pages 258 - 262) section 6.4 while completing this problem. Part A An unknown mass of each of the following substances, initially at 25.0 ° C, absorbs 1960 J of heat. The final temperature is recorded as indicated. Find the mass of each substance. a. Pyrex glass (T; = 55.6°C) Express your answer using two significant figures. Vol AEO m%3D Submit Request Answer Part B sand (T, = 62.3°C) Express your answer using two significant figures. P Pearson 0251
Part A Open the activity depicting Hess's Law. N:(g) + 0:(g) → 2NOg AH is an Extensive Property N: ( +0:(g) → NO(g) AH is an Extensive Property Click the button within the activity, and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, AH, is an extensive property. Using this property, calculate the change in enthalpy for Reaction 2. AH Canges sign when a process is revTsed 2NO2) > N:(g) + 0: (g Reaction 1: C3 Hs(g)+ 502 (g)→3CO2 (g) + 4H2O(g), AH1 = -2043 kJ Hess's Law of Constant Heat Sumnation + N: (g) +0: (g) → deg Reaction 2: 5C3 Hs(g) +25O2(g)→15CO2(g) +20H,O(g), AH2 =? When two reactions are added together. the individual reaction enthalpies are summed. Notice that equal quantities of the same species, on both sides of the reaction arrow, cancel. NQg) +0: g) → NO: (g) Express your answer to four significant figures and include the…
be sure your answer is correct and have the correct number of significant digits
Q5.44 Homework. Unanswered How much heat (in kJ) is needed to heat a 200.0 mL sample of water initially at 25.0 °C to a boiling temperature of 100.0 °C? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered. 4 attempts left Submit
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need help with this chemistry please be clear with sig-fig