Hardness

Welcome to the "Hardness" category on Questions LLC, the ultimate Q&A platform! This section is dedicated to exploring and discussing everything related to "Hardness." Whether you're curious about the hardness of different materials, the measurement and scales of hardness, or the factors that influence hardness, you've come to the right place. Our community of knowledgeable experts and enthusiasts are ready to tackle your queries and provide insightful answers. Join us as we delve into the fascinating and varied world of hardness!

Questions (11)

Hardness is defined as calcium and magnesium ion content. Since most hardness is caused by carbonate mineral deposits and does
1. 4 answers
2. asked by KO
3. 1,337 views
Use the table to answer the question.Mineral Hardness Cleavage/Fracture Luster Obsidian 5 Fracture Vitreous Halite 2.5 Cubic
1. 3 answers
2. asked by 🌹Yuki🌙
3. 120 views
A metal with a hardness of HRC50 is softer than a metal with a hardness of HRC30Group of answer choices False True No answer
1. 3 answers
2. asked anonymously
3. 50 views
Use table to answer question.MINERAL/ HARDNESS Obsidian. 5 Halite. 2.5 Flourite. 4 CLEAVAGE/FRACTURE /LUSTER Fracture. Vitreous
1. 3 answers
2. asked by M
3. 55 views
Use the table to answer the question.Mineral Hardness Cleavage/Fracture Luster Obsidian 5 Fracture Vitreous Halite 2.5 Cubic
1. 1 answer
2. asked anonymously
3. 61 views
Name two ions which cause temporary hardness of water and two ions which cause permanent hardness.
1. 2 answers
2. asked by Happy
3. 715 views
Which rock is harder? Shale, sandstone, or limestone? which one is softer?What is it about sandstone, shale, and limestone that
1. 2 answers
2. asked by lila
3. 622 views
9.Diamonds have a score of 10 on the Mohs scale. Therefore, they are used in grinding belts to buff and smooth other materials.
1. 1 answer
2. asked anonymously
3. 24 views
___________ is the resistance of metal to penetration and is an index of the wear resistance and strength of metal.Group of
1. 1 answer
2. asked anonymously
3. 24 views
Which physical property is shown by scratching one material with another?viscosity hardness conductivity malleability
1. 1 answer
2. asked by e
3. 29 views
Harder materials can scratch softer materials.. Titanium can scratch nickel. . Cooper can scratch lead. . Nickel can scratch
1. 1 answer
2. asked anonymously
3. 30 views