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Statue of libery is made from copper (Cu). Copper reacts when acid rain (2H+ + SO42-) falls forming copper sulfide (CuS, but other types of sulfides also possible). CuS oxidises slowly to copper sulfate (CuSO4) which has green colour. So, the statue of liberty has changed its colour from black (or copperish) to green.
What else can I help you with?
How does air pollution effect the statue of liberty?
the acid rain
What is the long term impact of water and oxygen on copper?
Corrosion or the coper item resulting in holes or structurally weakened copper. It turns very green; like the statue of liberty which is also made of copper. It should be cleaned with acid to remove corrosion.
Rain that contains a large amount of acid?
acid rain (it can destroy limestone) (it also made the Statue of Liberty green)
What kind of affect does acid rain have on monuments?
erosion corrosion, close?
How does acid affect an objects property?
Acids can destroy many objects by corrosion.
How does phosphoric acid affect the corrosion resistance of stainless steel?
Phosphoric acid can decrease the corrosion resistance of stainless steel by promoting the formation of localized corrosion, such as pitting and crevice corrosion. This is due to the acid's ability to break down the protective passive film on the stainless steel surface, making it more susceptible to corrosion.
How is weathering affecting the Statue of Liberty?
Weathering has affected the Statue of Liberty because the statue was once a coper color. Acid rain soon caused it to become a green color. Wind, water, snow, and the sun (forms of weathering) also caused the statue's natural color to wash away.
Is the Statue of Liberty a physical change or a chemical change?
No its a chemical change because the acid in the rain reacts with the copper in the statue having a reaction oxidizing it and turning it green.
what affects the rate at which acid rain reacts with a statue?
The rate at which acid rain reacts with a statue is influenced by factors such as the composition of the statue (e.g. limestone is more susceptible), the concentration of acid in the rain, the duration of exposure, and the weather conditions (e.g. temperature and humidity). Additionally, the presence of protective coatings or treatments on the statue can also affect the reaction rate.
How can acid rain affect a statue that was made of stone?
By altering (eating into) the minerals form which the stone is made.
How does acid corrosion affect the longevity and performance of metal structures?
Acid corrosion can weaken metal structures by breaking down the material, leading to structural damage and reduced longevity. This can compromise the performance and safety of the structure over time.
What causes the Statue of Liberty's color?
Originally, the Statue of Liberty was green, due to the fact that it is made of copper. However, after years of exposure to outdoor conditions, sulfuric acid in the rain has reacted with the copper, corroding the copper to produce copper salts. Copper can corrode into different colours depending on the conditions it is exposed to; in normal outdoor exposure, as is the case with the Statue of Liberty, copper usually corrodes into a blue-green colour.
