PART A: If a mineral has a hardness of 5, which minerals on the Mohs hardness scale would it scratch? talc calcite orthoclase diamond corundum topaz fluorite PART B: Which minerals will scratch apatite, but not scratch corundum? talc fluorite diamond quartz topaz orthoclase
PART A: If a mineral has a hardness of 5, which minerals on the Mohs hardness scale would it scratch? talc calcite orthoclase diamond corundum topaz fluorite PART B: Which minerals will scratch apatite, but not scratch corundum? talc fluorite diamond quartz topaz orthoclase
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...
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PART A: If a mineral has a hardness of 5, which minerals on the Mohs hardness scale would it scratch?
talc
calcite
orthoclase
diamond
corundum
topaz
fluorite
PART B: Which minerals will scratch apatite, but not scratch corundum?
talc
fluorite
diamond
quartz
topaz
orthoclase
Transcribed Image Text:**Mohs Hardness Scale**
The Mohs Hardness Scale is a measure used to determine the hardness of various minerals by comparing their ability to scratch one another. This scale ranges from 1 to 10, with 1 being the softest and 10 the hardest.
**Mineral Names and Scale Numbers:**
1. **Talc** – 1
2. **Gypsum** – 2
3. **Calcite** – 3
4. **Fluorite** – 4
5. **Apatite** – 5
6. **Orthoclase** – 6
7. **Quartz** – 7
8. **Topaz** – 8
9. **Corundum** – 9
10. **Diamond** – 10
**Common Objects and Their Associated Hardness:**
- **Fingernail** – 2.5
- **Copper Penny** – 3.5
- **Knife/Glass Plate** – 5.5
- **Steel Nail** – 6.5
- **Masonry Drill Bit** – 8.5
The scale helps in identifying minerals and understanding their practical applications based on hardness. The arrow on the left indicates increasing hardness from bottom to top.
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