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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 7, Problem 73SCQ
Textbook Problem
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What arguments would you use to convince another student in general chemistry that MgO consists of the ions Mg2+ and O2− and not the ions Mg+ and O? What experiments could be done to provide some evidence that the correct formulation of magnesium oxide is Mg2+O2−?

Interpretation Introduction

Interpretation:

MgO Consists of the ions Mg2+, O2- and not the ions Mg+ and O- has to be convinced; the correct formulation of Magnesium oxide is Mg2+ O2- has to be explained.

Concept Introduction:

Melting point: The temperature at which a given solid will melt is the melting point temperature.

Alkaline earth metals: All the elements that grouped into alkaline earth metals always form +2 oxidation state.

Explanation of Solution

Among the arguments for a compound composed of Mg2+ and O2- are the following:

  1. a) Chemical experience suggests that all Group 2A elements form 2+ cations, and that oxygen is typically O2- ion in its compounds.
  2. b) Other alkaline earth elements form oxides such as (BeO)(CaO)</

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Chapter 7 Solutions

Chemistry & Chemical Reactivity
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Ch. 7.4 - 2. Which of the following ions has the largest...Ch. 7.4 - Which of the following species is most...Ch. 7.5 - Without looking at the figures for the periodic...Ch. 7.5 - What is the trend in sizes of the ions K+, S2, and...Ch. 7.5 - Locate the elements C, N, Si, and P in the...Ch. 7.6 - Give the electron configurations for iron and the...Ch. 7.6 - In hemoglobin, iron can be in the iron(II) or...Ch. 7.6 - Why are copper atoms (radius = 128 pm) slightly...Ch. 7.6 - In hemoglobin, the iron is enclosed by the...Ch. 7.6 - 1. Which of the following is an incorrect...Ch. 7.6 - 2. 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(a) Which...Ch. 7 - Compare the elements B. Al, C, and Si. (a) Which...Ch. 7 - Explain each answer briefly. (a) Place the...Ch. 7 - Explain each answer briefly. (a) Rank the...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Explain why the photoelectron spectra of hydrogen...Ch. 7 - Sketch the major features (number of peaks and...Ch. 7 - These questions are not designated as to type or...Ch. 7 - The deep blue color of sapphires comes from the...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - The rare earth elements, or lanthanides, commonly...Ch. 7 - A neutral atom has two electrons with n = 1, eight...Ch. 7 - Element 109, now named meitnerium (in honor of the...Ch. 7 - Which of the following is not an allowable set of...Ch. 7 - A possible excited state for the H atom has an...Ch. 7 - The magnet in the following photo is made from...Ch. 7 - Name the element corresponding to each...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Rank the following in order of increasing...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer (he following questions about the elements...Ch. 7 - Which of the following ions are unlikely to be...Ch. 7 - Place the following ions in order of decreasing...Ch. 7 - Answer each of the following questions: (a) Of the...Ch. 7 - The following are isoelectronic species: Cl, K+,...Ch. 7 - Compare the elements Na. B. Al, and C with regard...Ch. 7 - Two elements in the second transition series (Y...Ch. 7 - The configuration for an element is given here....Ch. 7 - The configuration of an element is given here. (a)...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer the questions below concerning ground state...Ch. 7 - Nickel(II) formate [Ni(HCO2)2] is widely used as a...Ch. 7 - Spinets are solids with the general formula M2+...Ch. 7 - The following questions use concepts from this and...Ch. 7 - Which ions in the following list are not likely to...Ch. 7 - Answer the following questions about first...Ch. 7 - The ionization of the hydrogen atom can be...Ch. 7 - Compare the configurations below with two...Ch. 7 - The bond lengths in Cl2, Br2, and I2 are 200, 228,...Ch. 7 - Write electron configurations to show the first...Ch. 7 - What is the trend in ionization energy when...Ch. 7 - (a) Explain why the sizes of atoms change when...Ch. 7 - Which of the following elements has the greatest...Ch. 7 - What arguments would you use to convince another...Ch. 7 - Explain why the first ionization energy of Ca is...Ch. 7 - The energies of the orbitals in many elements have...Ch. 7 - The ionization energies for the removal of the...Ch. 7 - Using your knowledge of the trends in element...Ch. 7 - The densities (in g/cm3) of elements in Croups 6B,...Ch. 7 - The discovery of two new elements (atomic numbers...Ch. 7 - Explain why the reaction of calcium and fluorine...Ch. 7 - Thionyl chloride. SOCl2, is an important...Ch. 7 - Sodium metal reacts readily with chlorine gas to...Ch. 7 - Slaters rules are a way to estimate the effective...

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