Interpretation: The reason that the few iron artifact’s from ancient times survived is to be explained.

Concept introduction: Iron is extracted from its ore through the process of smelting in ancient times.

Expert Solution & Answer

Answer to Problem 67A

Iron in ancient times is not manufactured by the process of metallurgy. So, it has many impurities in it. Thereby, it is destroyed faster.

Explanation of Solution

In ancient times, iron was extracted from the rocks or its ore by the simple melting process to the form of wrought iron. Thereby removing the impurities present in iron.

While in current times, the extraction of iron is a huge process in the blast furnace, metallurgy. And, it involves the oxidation and reduction process of iron too. So, they have more existence compared to ancient iron.

Chapter 20, Problem 66A

Chapter 20, Problem 68A

Chapter 20 Solutions

Chemistry 2012 Student Edition (hard Cover) Grade 11

Ch. 20.1 - Prob. 1SP Ch. 20.1 - Prob. 2SP Ch. 20.1 - Prob. 3LC Ch. 20.1 - Prob. 4LC Ch. 20.1 - Prob. 5LC Ch. 20.1 - Prob. 6LC Ch. 20.1 - Prob. 7LC Ch. 20.1 - Prob. 8LC Ch. 20.1 - Prob. 9LC Ch. 20.2 - Prob. 10SP

Ch. 20.2 - Prob. 11SP Ch. 20.2 - Prob. 12SP Ch. 20.2 - Prob. 13SP Ch. 20.2 - Prob. 14SP Ch. 20.2 - Prob. 15SP Ch. 20.2 - Prob. 16LC Ch. 20.2 - Prob. 17LC Ch. 20.2 - Prob. 18LC Ch. 20.2 - Prob. 19LC Ch. 20.2 - Prob. 20LC Ch. 20.3 - Prob. 21SP Ch. 20.3 - Prob. 22SP Ch. 20.3 - Prob. 23SP Ch. 20.3 - Prob. 24SP Ch. 20.3 - Prob. 25SP Ch. 20.3 - Prob. 26SP Ch. 20.3 - Prob. 27LC Ch. 20.3 - Prob. 28LC Ch. 20.3 - Prob. 29LC Ch. 20.3 - Prob. 30LC Ch. 20.3 - Prob. 31LC Ch. 20 - Prob. 32A Ch. 20 - Prob. 33A Ch. 20 - Prob. 34A Ch. 20 - Prob. 35A Ch. 20 - Prob. 36A Ch. 20 - Prob. 37A Ch. 20 - Prob. 38A Ch. 20 - Prob. 39A Ch. 20 - Prob. 40A Ch. 20 - Prob. 41A Ch. 20 - Prob. 42A Ch. 20 - Prob. 43A Ch. 20 - Prob. 44A Ch. 20 - Prob. 45A Ch. 20 - Prob. 46A Ch. 20 - Prob. 47A Ch. 20 - Prob. 48A Ch. 20 - Prob. 49A Ch. 20 - Prob. 50A Ch. 20 - Prob. 51A Ch. 20 - Prob. 52A Ch. 20 - Prob. 53A Ch. 20 - Prob. 54A Ch. 20 - Prob. 55A Ch. 20 - Prob. 56A Ch. 20 - Prob. 57A Ch. 20 - Prob. 58A Ch. 20 - Prob. 59A Ch. 20 - Prob. 60A Ch. 20 - Prob. 61A Ch. 20 - Prob. 62A Ch. 20 - Prob. 63A Ch. 20 - Prob. 64A Ch. 20 - Prob. 65A Ch. 20 - Prob. 66A Ch. 20 - Prob. 67A Ch. 20 - Prob. 68A Ch. 20 - Prob. 69A Ch. 20 - Prob. 70A Ch. 20 - Prob. 71A Ch. 20 - Prob. 72A Ch. 20 - Prob. 73A Ch. 20 - Prob. 74A Ch. 20 - Prob. 75A Ch. 20 - Prob. 76A Ch. 20 - Prob. 77A Ch. 20 - Prob. 78A Ch. 20 - Prob. 79A Ch. 20 - Prob. 80A Ch. 20 - Prob. 81A Ch. 20 - Prob. 82A Ch. 20 - Prob. 83A Ch. 20 - Prob. 84A Ch. 20 - Prob. 85A Ch. 20 - Prob. 86A Ch. 20 - Prob. 87A Ch. 20 - Prob. 88A Ch. 20 - Prob. 89A Ch. 20 - Prob. 90A Ch. 20 - Prob. 91A Ch. 20 - Prob. 92A Ch. 20 - Prob. 93A Ch. 20 - Prob. 94A Ch. 20 - Prob. 95A Ch. 20 - Prob. 96A Ch. 20 - Prob. 97A Ch. 20 - Prob. 98A Ch. 20 - Prob. 99A Ch. 20 - Prob. 100A Ch. 20 - Prob. 1STP Ch. 20 - Prob. 2STP Ch. 20 - Prob. 3STP Ch. 20 - Prob. 4STP Ch. 20 - Prob. 5STP Ch. 20 - Prob. 6STP Ch. 20 - Prob. 7STP Ch. 20 - Prob. 8STP Ch. 20 - Prob. 9STP Ch. 20 - Prob. 10STP Ch. 20 - Prob. 11STP

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