If two substances were to have the same intensive properties...

would that mean they're the same substance?

Just need a little help with HW. My book's asking why can't copper and gold have the same intensive properties.. Isn't that just because they're simply two different substances?

yes

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p.s.

http://en.wikipedia.org/wiki/Intensive_a…
Examples of intensive properties include:
density
viscosity
electrical resistivity
specific heat capacity
hardness
melting point and boiling point
ductility
elasticity
malleability
magnetization
color
flammability

two different materials just would not have all of the same intensive preoperties