Why can a solid copper penny be solved in nitric acid, but not in hydrochloric acid? Modern pennies are made from zinc metal plated with copper. What happens to a modern penny when it is placed inside a bath of hydrochloric acid after the penny is scratched, exposing some of the zinc? The deteriorating iron frame work inside the Statue of Liberty was replaced with stainless steel as part of a major restoration project. The work was finished in 1986, exactly 100 years after the statue was first completed. To avoid any electrochemical contact between the metals, the new stainless steel frame on the external copper plates covering the statue we’re separated using teflon spacers. The original statue was constructed using asbestos pads as insulating spacers. Apparently, the pads were still able to act as a conductor (in conjunction with moisture and gases from the atmosphere). Why was the iron framework on the interior of the statue most in need of repair and not the copper plating exposed in the atmosphere on the exterior of the statue?
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
Why can a solid copper penny be solved in nitric acid, but not in hydrochloric acid? Modern pennies are made from zinc metal plated with copper. What happens to a modern penny when it is placed inside a bath of hydrochloric acid after the penny is scratched, exposing some of the zinc?
The deteriorating iron frame work inside the Statue of Liberty was replaced with stainless steel as part of a major restoration project. The work was finished in 1986, exactly 100 years after the statue was first completed. To avoid any
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