1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH,= -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. AH = +33.2 kJ 30,(g) + 286 kJ → 20,(g) d. N₂(g) + 20₂(g) → 2NO(g) H₂O(s) + heat H₂O(1) 2U-"He + 24Th + heat e. 1 f.

1. Which of the following accurately describes the conditions of an isolated system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 2. Which of the following accurately describes the conditions of an open system? a. Both energy and matter can move into or out of the system. b. Only matter can move into or out of the system. c. Only energy can move into or out of the system. d. Neither energy nor matter can move into or out of the system. e. None of the above. 3. Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O₂(g) → CO₂(g) AH,= -394 kJ b. H₂(g) + Cl₂(g) → 2HCl(g) + 185 kJ c. AH = +33.2 kJ 30,(g) + 286 kJ → 20,(g) d. N₂(g) + 20₂(g) → 2NO(g) H₂O(s) + heat H₂O(1) 2U-"He + 24Th + heat e. 1 f.

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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The following picture is a representation of _________. This process releases very large amounts of energy.
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Help 100% 47 T. "ublic Health Ch HSC 258 - Major Projec x MindTap - Cengage Lea X C The Illustration To T =55750828934189288909969212&elSBN=9781305657571&id=D1061392007&nbld=21... * Q Search t Referonces Use the References to access important values if needed for this question. For the following reaction, 50.4 grams of sulfur dioxide are allowed to react with 17.9 grams of water. sulfur dioxide (g) + water (I) sulfurous acid (H2SO3) (g) grams What is the maximum amount of sulfurous acid (H,SO3) that can be formed? What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer
Potentially Useful Reference Information Kw = 0.114 x 10-14 at 0°C Kw = 0.465 x 1014 at 15°C Kw = 0.681 x 10-14 at 20°C %3D Kw = 1.00 x 10-14 at 25°C %3D Kw = 2.42 x 10-14 at 37°C Kw = 9.61 x 10-14 at 60°C Acid Ka HCI 1.3 x 106 H2SO4 1х 103 HNO3 2.4 x 101 HSO4 1.2 x 10-2 A student measures the temperature of an NaOH solution to be 15 degrees C. The student then measures the pH of this NaOH solution to be pH = 12.39. H3PO4 7.5 x 103 H3CCOOH 1.8 x 10-5 In a separate experiment at 25°C, a student recorded that it took 25.8 mL of a 0.200M NAOH solution to completely neutralize 32.00 mL of H2CO3 4.3 x 107 an unknown, diprotic acid solution. Determine the initial molarity of H2PO4 6.2 x 10-8 this unknown acid solution. Error analysis is not necessary, but report your answer with the correct HCO3 4.8 x 10-11 number of significant figures. HPO,2 4.8 x 10-13