Chemistry, 30.05.2020 14:58 dakulrzz3

If a mineral isn't scratched by a fingernail, what can you conclude about the minerals
hardness?
It is at least a hardness of 4.0
A mineral can't be tested by a fingernail.
The hardness is more than 2.5.
The hardness is less than 2.5.

Answers: 1

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If a mineral isn't scratched by a fingernail, what can you conclude about the minerals
hardnes...