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Which of these statements correctly describes the law of conservation of mass (A) Th e

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

Solution for problem 15 Chapter Unit 1

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 15

Which of these statements correctly describes the law of conservation of mass? (A) Th e law of conservation of mass would be supported if the amount of copper at the beginning and end of a copper-cycle experiment were accurately measured. (B) Th e law of conservation of mass states that good laboratory techniques will help prevent the accidental loss of lab materials. (C) Th e law of conservation of mass states that small amounts of mass are lost in the course of an experiment because of spills, measurement errors, and other factors. (D) Th e law of conservation of mass does not apply to gases or aqueous solutions

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Intro to Electrochemistry • reduction - gain of electrons • oxidation - loss of electrons • oxidizing agent - reactant that does the oxidizing (being reduced) • reducing agent - reactant that does the reducing (being oxidized) • oxidation numbers/states - number of electrons a component has vs how many it would have as a free atom • rules for oxidation states —oxidation states of pure elements = 0 —oxidation state of single ion = charge of ion —oxidation state of hydrogen = +1 —oxidation state of fluorine = -1 —oxidation state of oxygen = -2 except when bonded with F or another O atom —ex. oxidation state of P in PO4 3-: -3 = x + 4(-2)—>x = +5 half reaction method for balancing redox reactions • —identify w

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Chapter Unit 1, Problem 15 is Solved
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Textbook: Living by Chemistry
Edition: 2
Author: Angelica M. Stacy
ISBN: 9781464142314

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Which of these statements correctly describes the law of conservation of mass (A) Th e