Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Question
Chapter 21, Problem 16RQ
To determine
The similarity between oxidation of zinc and oxidation of aluminium.
Expert Solution & Answer
Answer to Problem 16RQ
The similarity between zinc and aluminium form water insoluble oxides on oxidation. The oxides form coating and prevent further oxidation.
Explanation of Solution
The metals undergo oxidation. In an oxidation reaction, the metal loses electrons.
The metals undergo oxidation in presence of oxygen and water (moisture). This process deteriorates the metal and is known as corrosion.
The metals on oxidation form oxides. The zinc and aluminium metals form a water-insoluble oxide. These oxides form a layer on the surface of the metal. It is a protective layer and it prevents further oxidation/corrosion of the metal.
Conclusion:
Therefore, the similarity between zinc and aluminium form water insoluble oxides on oxidation. The oxides form coating and prevent further oxidation.
Chapter 21 Solutions
Conceptual Physical Science Explorations
Ch. 21 - When an acid is dissolved in water, what ion does...Ch. 21 - When a chemical loses a hydrogen ion, is it...Ch. 21 - Why does a solution of a strong acid conduct...Ch. 21 - When can a solution of a weak base be more...Ch. 21 - Is water a strong acid or a weak acid?Ch. 21 - What is true about the relative concentrations of...Ch. 21 - What does the pH of a solution indicate?Ch. 21 - What is the product of the reaction between carbon...Ch. 21 - How do humans generate the air pollutant sulfur...Ch. 21 - Prob. 10RQ
Ch. 21 - Prob. 11RQCh. 21 - What is the difference between an oxidizing agent...Ch. 21 - What is electrochemistry?Ch. 21 - What is the prime difference between a battery and...Ch. 21 - What is electrolysis, and how does it differ from...Ch. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - What happens to the polarity of oxygen atoms as...Ch. 21 - What do we do to food molecules to obtain energy...Ch. 21 - What gas, when provided in the right...Ch. 21 - Rank the following solutions in order of...Ch. 21 - Prob. 2TCCh. 21 - Review the concept of electronegativity in Section...Ch. 21 - Identify the acid or base behavior of each...Ch. 21 - What happens to the corrosive properties of an...Ch. 21 - Why do we use the pH scale to indicate the acidity...Ch. 21 - Water is formed from the reaction between an acid...Ch. 21 - What happens to the pH of an acidic solution as...Ch. 21 - Prob. 6TECh. 21 - Pour vinegar onto beach sand from the Caribbean...Ch. 21 - Prob. 8TECh. 21 - What happens to the pH of water as you blow...Ch. 21 - Prob. 10TECh. 21 - Prob. 11TECh. 21 - What element behaves as the oxidizing agent in the...Ch. 21 - The type of iron that the human body needs for...Ch. 21 - Water is 88.88 oxygen by mass. Oxygen is exactly...Ch. 21 - Prob. 15TECh. 21 - Prob. 16TECh. 21 - As we digest and subsequently metabolize food, is...Ch. 21 - How is suspended animation similar to death? How...Ch. 21 - Are hydrogen sulfide, H2S and oxygen, O2 ,...Ch. 21 - Assuming the technique of suspended animation was...Ch. 21 - Show that the pH of a solution is 10 when the...Ch. 21 - When the hydronium ion concentration of a solution...Ch. 21 - Prob. 3TSCh. 21 - Show that the pH of a solution is 0.301 when its...Ch. 21 - What is the relationship between the hydroxide ion...Ch. 21 - Water is formed from the reaction of an acid and a...Ch. 21 - What happens to the corrosive properties of an...Ch. 21 - Why do we use the pH scale to indicate the acidity...Ch. 21 - Prob. 5RATCh. 21 - When the hydronium ion concentration equals 1M ,...Ch. 21 - What element is oxidized in the following equation...Ch. 21 - What is the purpose of the salt bridge in Figure...Ch. 21 - Why does a battery that has thick zinc walls last...Ch. 21 - How does an atoms electronegativity relate to its...
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