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Solved: Properties of Metals and Nonmetals (Section)Write

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 68E Chapter 7

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 68E

Problem 68E

Properties of Metals and Nonmetals (Section)

Write balanced equations for the following reactions: (a) potassium oxide with water, (b) diphosphorus trioxide with water, (c) chromium(III) oxide with dilute hydrochloric acid, (d) selenium dioxide with aqueous potassium hydroxide.

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Week 2 (no class week oneProfessor illness) Geology 207 Environmental Geology, Geochemical Cycles Dr. Klaus Neumann INTRODUCTION / REFRESHER CHEMISTRY Atom  Basic building block. Proton  (+) Mass =1 Neutron  (-) Mass = 0 Electron (0) Mass = 1 Atomic Number = Number of protons Determine number of neutron  (Atomic mass – atomic number) Balance charge using protons and electrons (neutron charge = 0) - Most stable (rarely react) when out most electron orbit is completely filled. (Noble Gases- He, Ne, Ar, Kr, Xe, Rn) Ion  has a charge (+ or -) Cation  Positive charge (+) Anion  Negative charge (-) Compounds – atoms together NaCl – Ionic compound Covalent – (NH3) - Metallic Bonds – Metal – Conductor (electricity) – Hydrogen Bonds – Isotope – Change in neutrons Radioactivity –most reactive Carbon-14 (most radioactive, choosing from carbon-12, carbon-13, & carbon-14) Mole  atomic mass (grams) or molar ratios (Avogadro’s number) CHEMICAL REACTIONS 1. Precipitation/Dissolution 2. Acid/Base 3. Oxidation Reduction Precipitation/Dissolution Reactant (left side)  Products (right side) Na(+) + Cl(-)  NaCl Acid / Base (Sum always remains the same) HCl  H(+) + Cl(-) Acid H20  H(+) + OH(-) Acid NaOH  Na(+) + OH(-) Base pH – level of acidity; Oxidation / Reduction Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion. CH4 + 2O2  CO2 + 2H2O Carbon changes charge WATER (Covalent) Vapor Liquid Solid Density is temperature dependent. If you heat water it will take more space FRESHWATER

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Chapter 7, Problem 68E is Solved
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Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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Solved: Properties of Metals and Nonmetals (Section)Write