Question

For each of the following positive ions, use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the positive ions would form with the $\mathrm{Cl}^{-}, \mathrm{S}^{2-},$ and $\mathrm{N}^{3-}$ ions. $\begin{array}{ll}{\text { a. } \mathrm{K}^{+}} & {\text { C. } \mathrm{Al}^{3+}} & {\text { e. } \mathrm{Li}^{+}} \\ {\text { b. } \mathrm{Mg}^{2+}} & {\text { d. } \mathrm{Ca}^{2+}}\end{array}$

Name: Problem 83, Chapter 4: Introductory Chemistry
Uploaded: 2023-08-31T04:01:39-08:00
Channel: Ronald Prasad
Description: For each of the following positive ions, use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the positive ions would form with the Cl^-, S^2-, and N^3- ions. a. K^+ C. Al^3+ e. Li^+ b. Mg^2+ d. Ca^2+

   For each of the following positive ions, use the concept that a chemical compound must have a net
charge of zero to predict the formula of the simple compounds that the positive ions would form with the $\mathrm{Cl}^{-}, \mathrm{S}^{2-},$ and $\mathrm{N}^{3-}$ ions.
$\begin{array}{ll}{\text { a. } \mathrm{K}^{+}} & {\text { C. } \mathrm{Al}^{3+}} & {\text { e. } \mathrm{Li}^{+}} \\ {\text { b. } \mathrm{Mg}^{2+}} & {\text { d. } \mathrm{Ca}^{2+}}\end{array}$

Introductory Chemistry

Steven S. Zumdahl,… 7th Edition

Chapter 4, Problem 83

Instant Answer

Solved by Expert Ronald Prasad

08/31/2023

Step 1

This means that the total positive charge must be equal to the total negative charge. Show more…

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For each of the following positive ions, use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the positive ions would form with the $\mathrm{Cl}^{-}, \mathrm{S}^{2-},$ and $\mathrm{N}^{3-}$ ions. $\begin{array}{ll}{\text { a. } \mathrm{K}^{+}} & {\text { C. } \mathrm{Al}^{3+}} & {\text { e. } \mathrm{Li}^{+}} \\ {\text { b. } \mathrm{Mg}^{2+}} & {\text { d. } \mathrm{Ca}^{2+}}\end{array}$

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Key Concepts

Charge Neutrality Principle

Every chemical compound must have a net charge of zero. This principle requires that the overall sum of the positive and negative charges contributed by the ions in a compound cancels out completely. It is a fundamental rule in ionic chemistry that dictates how ions combine to form stable, neutral compounds.

Ionic Compound Formula Determination

The process of determining an ionic compound’s formula involves balancing the charges of the constituent ions. By comparing the magnitude of the charges on the cations and anions, one can employ the concept of cross multiplication to arrive at the simplest whole-number ratio of ions that results in a neutral compound. This technique ensures that the total positive charge equals the total negative charge.

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