1.Every soda can has a hidden liner inside to prevent the beverage from reacting with the metal.
2.High yield strength: Aluminium is one of the most ductile metals on earth. It affects yield strength positively.Oxidation resistance: The aluminium coating forms two layers that protect the steel core. On the very surface, a thin aluminium oxide layer is formed.
3.Equalizing the water levels equalizes the pressures and ensures that the total pressure in the flask is atmospheric and does not contain a contribution from the pressure due to the height of the water column.
4.When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.