Well , I will say this is a false statement. This is because compounds which were all made by the same bond have same physical properties but different chemical properties.
Chemical Properties : How do the subtances react with ( water, acid,alkaline, base , gas like oxygen, etc. )
Physical Properties : - Solubility of those subtances in (water or organic solvent ) - Electric Conductivity - Melting or Boiling Point - Density - Smell (exp : Ammonia has pungent smell , Esters has fruity smell)
The two samples will have the same density because they are the same substance. The volume will have increased just enough to balance the greater mass. Key Concept- When substances have the same volumes but different masses, the substance having the greatest mass will be the most dense.