Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Read the text then answer the questions below. How long ago a metal was first discovered and used can be partly explained by the metal's reactivity. Gold and silver are the least reactive metals. They have been used for thousands of years as they are both found in their pure state, uncombined with other elements. Copper is easily extracted by just heating the ore, and so has been used since 3200 BCE. Other less reactive metals like tin, lead and iron are extracted by heating their ores with charcoal. Pure metals are usually quite soft. The Bronze Age began when copper and tin were mixed to make the much harder bronze. The more reactive a metal, the higher the temperature needed to extract it. Therefore iron is harder to extract than copper and tin, and was not used until about 1000 BCE. It was then discovered that putting red-hot iron into cold water made the iron much stronger and sharper, so iron became the metal of choice, making far superior tools and weapons. The hardest ores to break down are those of the most reactive metals. Magnesium, aluminium and sodium can only be extracted by using electricity. These metals were not produced in large quantities until the twentieth century. Iron is much more common than copper. Why was it discovered so much later? 6 What was the advantage of putting red-hot iron into cold water? 7 Some Bronze Age societies were quite sophisticated. Suggest how the discovery of iron might have led to their overthrow. 8 Aluminium is the most abundant metal in the Earth's crust. Why do you think it was not discovered until relatively recently (i.e. just a couple of hundred years ago).

Read the text then answer the questions below. How long ago a metal was first discovered and used can be partly explained by the metal's reactivity. Gold and silver are the least reactive metals. They have been used for thousands of years as they are both found in their pure state, uncombined with other elements. Copper is easily extracted by just heating the ore, and so has been used since 3200 BCE. Other less reactive metals like tin, lead and iron are extracted by heating their ores with charcoal. Pure metals are usually quite soft. The Bronze Age began when copper and tin were mixed to make the much harder bronze. The more reactive a metal, the higher the temperature needed to extract it. Therefore iron is harder to extract than copper and tin, and was not used until about 1000 BCE. It was then discovered that putting red-hot iron into cold water made the iron much stronger and sharper, so iron became the metal of choice, making far superior tools and weapons. The hardest ores to break down are those of the most reactive metals. Magnesium, aluminium and sodium can only be extracted by using electricity. These metals were not produced in large quantities until the twentieth century. Iron is much more common than copper. Why was it discovered so much later? 6 What was the advantage of putting red-hot iron into cold water? 7 Some Bronze Age societies were quite sophisticated. Suggest how the discovery of iron might have led to their overthrow. 8 Aluminium is the most abundant metal in the Earth's crust. Why do you think it was not discovered until relatively recently (i.e. just a couple of hundred years ago).

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question

I need short answers

Read the text then answer the questions below. How long ago a metal was first discovered and used can be partly explained by the metal's reactivity. Gold and silver are the least reactive metals. They have been used for thousands of years as they are both found in their pure state, uncombined with other elements. Copper is easily extracted by just heating the ore, and so has been used since 3200 BCE. Other less reactive metals like tin, lead and iron are extracted by heating their ores with charcoal. Pure metals are usually quite soft. The Bronze Age began when copper and tin were mixed to make the much harder bronze. The more reactive a metal, the higher the temperature needed to extract it. Therefore iron is harder to extract than copper and tin, and was not used until about 1000 BCE. It was then discovered that putting red-hot iron into cold water made the iron much stronger and sharper, so iron became the metal of choice, making far superior tools and weapons. The hardest ores to break down are those of the most reactive metals. Magnesium, aluminium and sodium can only be extracted by using electricity. These metals were not produced in large quantities until the twentieth century. Iron is much more common than copper. Why was it discovered so much later?. What was the advantage of putting red-hot iron into cold water? Some Bronze Age societies were quite sophisticated. Suggest how the discovery of iron might have led to their overthrow. 7 8. Aluminium is the most abundant metal in the Earth's crust. Why do you think it was not discovered until relatively recently (i.e. just a couple of hundred years ago). 56
Transcribed Image Text:Read the text then answer the questions below. How long ago a metal was first discovered and used can be partly explained by the metal's reactivity. Gold and silver are the least reactive metals. They have been used for thousands of years as they are both found in their pure state, uncombined with other elements. Copper is easily extracted by just heating the ore, and so has been used since 3200 BCE. Other less reactive metals like tin, lead and iron are extracted by heating their ores with charcoal. Pure metals are usually quite soft. The Bronze Age began when copper and tin were mixed to make the much harder bronze. The more reactive a metal, the higher the temperature needed to extract it. Therefore iron is harder to extract than copper and tin, and was not used until about 1000 BCE. It was then discovered that putting red-hot iron into cold water made the iron much stronger and sharper, so iron became the metal of choice, making far superior tools and weapons. The hardest ores to break down are those of the most reactive metals. Magnesium, aluminium and sodium can only be extracted by using electricity. These metals were not produced in large quantities until the twentieth century. Iron is much more common than copper. Why was it discovered so much later?. What was the advantage of putting red-hot iron into cold water? Some Bronze Age societies were quite sophisticated. Suggest how the discovery of iron might have led to their overthrow. 7 8. Aluminium is the most abundant metal in the Earth's crust. Why do you think it was not discovered until relatively recently (i.e. just a couple of hundred years ago). 56
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Green Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS