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Introductory Chemistry: A Foundati...

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

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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. Although aluminium is a reactive metal, pure aluminium ordinarily does not corrode severely in air because a protective layer of _________ builds up on the metal’s surface.

Interpretation Introduction

Interpretation:

The correct term corresponding to the given blank is to be stated.

Although aluminum is a reactive metal, pure aluminium ordinarily does not corrode severely in air because a protective layer of ________ builds up on the metal’s surface.

Concept Introduction:

The deterioration of metal in the presence of air, moisture and chemical such as an acid is known as corrosion. It turns the colour of silver articles to black due to the formation of silver sulphide over their surface in the presence of air.

Explanation

The deterioration of metal in the presence of air, moisture and chemical such as an acid is known as corrosion. Corrosion involves oxidation of a metal. For example, aluminum is a reactive metal that readily loses electrons. Therefore, it is easily oxidized by O2. The reaction of aluminium with oxygen gas is shown below.

4Al+3O2

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