Respuesta :
Answer:
Hardness is a physical property
Friedrich Mohs developed the standard hardness scale.
Diamond can scratch quartz.
Explanation:
hope it helped! ^_^
Answer:
hardness is a physical property
hardness is indicative of the strength of chemical bonds between elements.
hardness is a determined through a complicated processs that requires expensive instruments.
Friedrish Mohs developed the standard hardness scale.
Diamomd can scratch quartz