what are hard ahd soft substance ?how do you identify whether a given material is hard or soft?
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hard substance are substance having high intermolecular attraction.
low level answer: hard in nature.
ex,diamond
soft substance are substance having high low intermolecular attraction.
ex,talc
low level answer: soft in nature
we define it by touch or hammering it.
as you have to know that soft substance generally break thats why they are brittleless and hard substance not break.
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Hard substance is hard and soft is soft by touching we can identify...
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