Home > Chemistry > Chemical and Physical Properties

What physical property can be shown by scratching one material with another?

Answer 1

You speak of Friedrich Moh's scale of mineral hardness.

According to the article, the relative hardness of minerals has been studied since antiquity. Moh arbitrarily ranked talc as the least hard mineral (number 1), and the hardest minerals, carborundum and diamond, at numbers 9 and 10. The scale is non-linear but is likely very helpful for geologists.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Xavier Avery

Hardness is a physical attribute that can be demonstrated by scratching one material with another.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.