Properties such as color. density and hardness.

Answer is:  color, density and hardness are physical properties.

Physical property can be observed and measured without any changes in molecular composition. The same substance is present before and after the change.

Sublimation of iodine (from solid to gas state) is physical change.

Making mixture is also physical change (physical change is reversible).

Compressing carbon under high pressure is physical change.

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

the objects have the same charge.