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You mix solid hydrated barium hydroxide, Ba(OH)2 8H2O(s), and solid ammonium nitrate

Living by Chemistry | 2nd Edition | ISBN: 9781464142314 | Authors: Angelica M. Stacy ISBN: 9781464142314 439

Solution for problem 5 Chapter Lesson 95

Living by Chemistry | 2nd Edition

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Living by Chemistry | 2nd Edition | ISBN: 9781464142314 | Authors: Angelica M. Stacy

Living by Chemistry | 2nd Edition

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Problem 5

You mix solid hydrated barium hydroxide, Ba(OH)2 ? 8H2O(s), and solid ammonium nitrate, 2NH4NO3(s), in a beaker. Th e reaction is shown here. A small pool of water in contact with the outside of the beaker freezes. Ba(OH)2 ? 8H2O(s) 1 2NH4NO3(s) 2NH3( g) 1 10H2O(l) 1 Ba(NO3)2(aq) a. List all the substances that are part of the system. b. List at least four objects that are part of the surroundings. c. Which is at a lower temperature: NH4NO3(s) or Ba(NO3)2(aq)? Explain your thinking. d. What will you feel if you touch the beaker? e. Is the reaction endothermic or exothermic? Explain your thinking. f. What evidence do you have that heat is transferred from the surroundings to the products of the reaction?

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Chemistry 1211: Agarwal Chapter 1 Book Notes 1 What is Chemistry 1.1The Scale of Chemistry  Chemistry: the study of matter, its transformations, and how it behaves  Matter: any physical substance that occupies space and has mass o Matter consists of atoms, molecules o Most chemical transformations take place at the atomic, molecular level  Macroscopic scale: matter that can be seen with the naked eye  Atomic scale: (also called nano, molecular scale) used when describing individual atoms or molecules o Observations are made on the macroscopic scale o Descriptions and explanations of chemical processes are made on the atomic level o Macroscopic scale observations explain atomic scale properties 1.2Measuring Matter o Being sure to make prec

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Textbook: Living by Chemistry
Edition: 2
Author: Angelica M. Stacy
ISBN: 9781464142314

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You mix solid hydrated barium hydroxide, Ba(OH)2 8H2O(s), and solid ammonium nitrate