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Title: Covellite or Chalcocite? PDF
Url: https://www.maine.gov/dacf/mgs/education/lessons/act22.pdf
Publisher: Maine. Department of Conservation.
Description: In this activity, students will be introduced to the concept of mineral stoichiometrics (ratios of atoms in a compound) by performing a chemical reaction between copper and sulfur, which can result in either covellite (CuS) or chalcocite (Cu2S). Working in small groups, they will heat measured amounts of copper and sulfur in a crucible until constant weight is achieved, then calculate the theoretical weight of both CuS and Cu2S that they could have produced. Sample calculations, a student worksheet, and discussion questions are provided.
LC Classification: Science -- Chemistry -- Study and teaching. Research -- Problems, exercises, examinations
Science -- Geology -- Mineralogy -- Study and teaching. Research
Science -- Geology -- Study and teaching. Research -- Problems, exercises, examinations
GEM Subject: Science -- Chemistry
Science -- Earth science
Science -- Instructional issues
Science -- Geology
Key Concept: Chemistry -- Chemical reactions
Geology -- Minerals
Date Issued: 2005-10-06
Resource Type: Reference Material
Instructional Material
Instructional Material -- Problem Set
Instructional Material -- Lesson/Lesson Plan
Instructional Material -- Interactive Simulation
Instructional Material -- Experiment/Lab Activity
Format: Document -- PDF
Audience: Educator
Learner
Education Level: High School
Higher Education
Higher Education -- Undergraduate (Lower Division)
Language: English
Rights: Maine Department of Conservation
Access Rights: Free access
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