
Interpretation: The balanced equation for production of copper should be determined.
Concept introduction:
- Most metals occur in nature as minerals which are generally some form of metal oxide, and the mineral must be refined to isolate the pure metal from the mineral.
- To isolate the pure metal from an ore (mineral), the ore is often concentrated and undergoes chemical treatment prior to reduction, the ore is then reduced to the free metal and the metal is then refined and purified. This process refers to metallurgy.

Answer to Problem 21.1P
Solution:
Explanation of Solution
We are asked to produce pure copper by roasting Cu2S. In this instance, roasting refers to combustion which is a reaction with O2(g). So, we know that Cu2S reacts with O2to produce pure Cu and must balance the remaining atoms:
(c)
Interpretation: The balanced equation for production of lead should be determined.
Concept introduction:
- Most metals occur in nature as minerals which are generally some form of metal oxide, and the mineral must be refined to isolate the pure metal from the mineral.
- To isolate the pure metal from an ore (mineral), the ore is often concentrated and undergoes chemical treatment prior to reduction, the ore is then reduced to the free metal and the metal is then refined and purified. This process refers to metallurgy.

Answer to Problem 21.1P
Solution:
Explanation of Solution
We are asked to produce pure lead by reducing
(d)
Interpretation: The balanced equation for production of potassium should be determined.
Concept introduction:
- Most metals occur in nature as minerals which are generally some form of metal oxide, and the mineral must be refined to isolate the pure metal from the mineral.
- To isolate the pure metal from an ore (mineral), the ore is often concentrated and undergoes chemical treatment prior to reduction, the ore is then reduced to the free metal and the metal is then refined and purified. This process refers to metallurgy.

Answer to Problem 21.1P
Solution:
Explanation of Solution
We are asked to produce pure potassium by the
Want to see more full solutions like this?
Chapter 21 Solutions
Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)
- Don't used hand raiting and don't used Ai solution and correct answerarrow_forwardH R Part: 1/2 :CI: is a/an electrophile Part 2 of 2 Draw the skeletal structure of the product(s) for the Lewis acid-base reaction. Include lone pairs and formal charges (if applicable) on the structures. 4-7: H ö- H Skip Part Check X :C1: $ % L Fi Click and drag to start drawing a structure. MacBook Pro & ㅁ x G 0: P Add or increase positive formal cha Save For Later Submit ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centearrow_forwardDraw the friedel-crafts acylation mechanism of m-Xylenearrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forward1. Base on this experimental results, how do you know that the product which you are turning in is methyl 3-nitrobenzoate(meta substituted product ) rather than either of the other two products? 2. What observation suggests that at least a small amount of one or both of the other two isomers are in the mother liquor?arrow_forwardExplain Huckel's rule.arrow_forward
- here is my question can u help me please!arrow_forwardSo I need help with understanding how to solve these types of problems. I'm very confused on how to do them and what it is exactly, bonds and so forth that I'm drawing. Can you please help me with this and thank you very much!arrow_forwardSo I need help with this problem, can you help me please and thank you!arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





