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because the weather over the years was wearing away the marbles surface and shown the limestone centre
Wiki User
∙ 11y ago
The cleaning of the Statue of David with acid in 1873 was part of a misguided attempt to remove accumulated grime and discoloration from the marble. However, this aggressive cleaning method ended up damaging the statue's surface and eroding some of its original details. Today, conservation efforts focus on using more gentle techniques to preserve the artwork.
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What is a compound formed from a positive ion of a base and the negative ion of an acid called?
The compound formed from a positive ion of a base and the negative ion of an acid is called a salt. Salt is the product of a neutralization reaction between an acid and a base.
Who discover aquaregia?
Aqua regia, a mixture of nitric acid and hydrochloric acid, was discovered by Islamic alchemists. Its discovery is credited to the Persian alchemist Jabir ibn Hayyan in the 9th century.
How are the pyramids affected by acid rain?
Acid rain can cause erosion of the outer surface of the pyramids as the acidic chemicals react with the limestone material. Over time, this can lead to deterioration of the pyramids' structure and a loss of the original details and engravings. Conservation efforts are important to protect these ancient monuments from the damaging effects of acid rain.
Is a cave formed when carbonic acid dissolves underground limestone?
Yes, caves are formed when carbonic acid, which is created by the reaction of water with carbon dioxide, dissolves underground limestone. Over time, the dissolved limestone is carried away by water, creating large openings and chambers that we call caves.
How solution caves form underground?
Solution caves form underground through a process called karstification. This occurs when water containing weak carbonic acid dissolves soluble rocks such as limestone or dolomite. Over time, the constant dissolution creates openings and passages in the rock, eventually leading to the formation of solution caves. These caves can vary in size and complexity depending on the extent of the dissolution process.
Why would statues look different due to weathering?
they crumble by acid rain and they rain makes hole in the statue they crumble by acid rain and they rain makes hole in the statue they crumble by acid rain and they rain makes hole in the statue
How can rain deteriorate the stone in statue?
there is acid in rain.
What acid is wool cleaned with?
I am not sure but it might be alkali pH.
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)
Is uranium luster?
Only if the surface was recently cleaned with nitric acid.
What causes the face of a marble statue no longer be seen?
acid rain
Acid rain damaging a marble statue is a physical change?
false
Is acid rain damaging a marble statue a physical change?
false
Why some metallic vessels are cleaned with lemon?
In contains a mild acid (citric acid) that does the cleaning. Ketchup works as well.
Does Citric Acid react with gold If so what is the reaction between Citric Acid and copper Metal?
copper gets cleaned with the citric acid do a google search for the science init
