If zinc has a hardness on the mohs scale of 2.5 , is it a chemical or physical property?

If  the  zinc  has a  hardness  on  the  mohs  scale  of  2.5  it  is  a  physical  properties. In  addition   to  this  zinc  has  a density  of  7.13g/cm^3  at  25 degrees  and  it  melt  at  420  degrees. The   physical  properties of  an  element  can  be  observed without changing  the identity  and  composition of  the  substance.

Hardness on the Mohs scale is a physical rather than chemical property, because, in practice, it is measured through physical apparatus, rather than predicted from the chemical properties of the element.

Higher temperature = molecules move around faster. and vice versa.