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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
BuyFind

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

Solutions

Chapter
Section
Chapter 6, Problem 9ALQ
Textbook Problem
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Use molecular-level drawings to show the difference between physical and chemical changes.

Expert Solution
Interpretation Introduction

Interpretation:

To determine the difference between physical and chemical changes using the molecular-level drawings.

Concept Introduction:

In a chemical compound, molecule are the tiny units that shows physical and chemical properties. When these compounds undergo changes, the chemical and physical properties of the compound changes under specific conditions exhibiting new changes.

Explanation of Solution

Chemical change:

When a substance undergoes changes that alters the chemical properties of the compound, where new chemical compound is formed with the chemical change. This chemical change is due to the change in the level of molecules. When this chemical change takes place, the molecules of the substance break or it forms a new substance during the change that occurs chemically. The key characteristics of the chemical change are:

  • When chemical changes occur, characteristics such as light, gas, color, heat indicates the change.
  • It forms one or more new substances.
  • It can form precipitates.

The example of chemical change is such that when the iron substance gets rusted, it changes to iron oxide because of the oxygen in the atmosphere as shown below:

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Chapter 6 Solutions

Introductory Chemistry: A Foundation
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Ch. 6 - Can the coefficients in a balanced chemical...Ch. 6 - Changing the subscripts of chemicals can...Ch. 6 - Table 6.1 lists some clues that a chemical...Ch. 6 - Use molecular-level drawings to show the...Ch. 6 - It is stated in Section 6.3 of the text that to...Ch. 6 - Which of the following statements concerning...Ch. 6 - Consider the generic chemical equationaA+bBcC+dD...Ch. 6 - How is the balancing of chemical equations related...Ch. 6 - Which of the following correctly describes the...Ch. 6 - Which of the following correctly balances the...Ch. 6 - The reaction of an element X() with element Y() is...Ch. 6 - How do weknowwhen a chemical reaction is taking...Ch. 6 - These days many products are available to whiten...Ch. 6 - Although these days many people have...Ch. 6 - Although this is no longer generally recommended,...Ch. 6 - You have probably had the unpleasant experience of...Ch. 6 - If you’ve ever left bread in a toaster too long,...Ch. 6 - What are the substances to theleftof the arrow in...Ch. 6 - For the unbalanced chemical...Ch. 6 - In a chemical reaction, the total number of atoms...Ch. 6 - What does “balancing” an equation accomplish?Ch. 6 - Why are thephysical statesof the reactants and...Ch. 6 - The notation “(l)” after a substance’s formula...Ch. 6 - A common experiment to determine the relative...Ch. 6 - A common lecture demonstration called “elephant’s...Ch. 6 - If a sample of pure hydrogen gas is ignited very...Ch. 6 - Liquid hydrazine, has been used as a fuel for...Ch. 6 - If electricity of sufficient voltage is passed...Ch. 6 - Silver oxide may be decomposed by strong heating...Ch. 6 - Elemental boron is produced in one industrial...Ch. 6 - Many over-the-counter antacid tablets are now...Ch. 6 - Phosphorus trichloride is used in the manufacture...Ch. 6 - Pure silicon, which is needed in the manufacturing...Ch. 6 - Nitrous oxide gas (systematic name: dinitrogen...Ch. 6 - Solid zinc is added to an aqueous solution...Ch. 6 - Acetylene gas (C2H2) is often used by plumbers,...Ch. 6 - The burning of high-sulfur fuels has been shown to...Ch. 6 - The Group 2 metals (Ba, Ca, Sr) can be produced in...Ch. 6 - There are fears that the protective ozone layer...Ch. 6 - Carbon tetrachloride was widely used for many...Ch. 6 - When elemental phosphorus, P4, burns in oxygen...Ch. 6 - Calcium oxide is sometimes very challenging to...Ch. 6 - Although they were formerly called the inert...Ch. 6 - The element tin often occurs in nature as the...Ch. 6 - Nitric acid, HNO3 , can be produced by reacting...Ch. 6 - When balancing chemical equations, beginning...Ch. 6 - The “Chemistry in Focus” segment The Beetle That...Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance the equations for the reaction of...Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Balance each of the following chemical equations....Ch. 6 - Acetylene gas, C2H2 , is used in welding because...Ch. 6 - When balancing a chemical equation, which of the...Ch. 6 - Crude gunpowders often contain a mixture of...Ch. 6 - The following demonstration takes place in a...Ch. 6 - Methanol (methyl alcohol), CH3OH , is a very...Ch. 6 - The Hall process is an important method by which...Ch. 6 - Iron oxide ores, commonly a mixture of FeO and...Ch. 6 - True or false? 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