Mercury plating a penny

Mercury plating a penny

A penny is placed in a solution of mercuric nitrate, 3-4 minuts later it is coded in a dull silver color which then it is taken out and rubbed with a towel to polish it to a shine.

test Introduction to Chemistry

Introduction to ChemistryIntroduction to Chemistry

Self healing hydrogels and its industrial applications

Hydrogels are water-swollen, cross-linked polymeric structures produced by reactions of monomers or by hydrogen bonding. This hydrogels used in various applications .