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It is also known as calcium carbonate, and is the formula for the minerals calcite and aragonite.

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Limestone is a compound or element or mixture?

Limestone is principally CaCO3, which is a compound. Because naturally occurring limestone is usually formed from sea shells and ocean bottom debris mixed together, naturally occurring limestone is usually a mixture. Naturally occurring limestone in caves in the form of stalactites and stalagmites can be much more nearly pure than limestone formed from former sea beds, but even these kinds of cave limestone generally contain some materials other than pure CaCO3.


Two identical statues are placed outside one is made of limestone the other made of granite Which statue will weather more slowly?

The granite statue will weather more slowly than the limestone statue because granite is a more durable and less porous material compared to limestone. Granite is known for its resistance to weathering and erosion, making it a better choice for outdoor sculptures subjected to environmental factors.


Is chalk harder than limestone?

No, limestone is harder than chalk. Limestone is a sedimentary rock composed mainly of calcite, whereas chalk is a soft, porous sedimentary rock composed mainly of calcium carbonate.


Why is limestone changed into marble?

Limestone is softer than marble because of how they are formed inside. Marble consists of tightly interlocked crystals, which makes it stronger than limestone. Limestone consists of small fossil fragments and smaller crystals, which makes it weaker than marble.


Can you separate chemicaly MgCO3 from CaCO3?

I have the same task. Maybe this one would work: If amount of CaCO3 is known I would try to add stechiometric amount of any diluted acid (e.g. HCl), which would form Ca water soluble salt to solution of MgCO3/CaCO3 in water (note, that these salts are not soluble in water, therefore that will colloid solution). The reaction would be CaCO3+2HCl=CaCl2+H2O+CO2. Calcium is more reactive metal than Mg, therefore, CaCO3 would react first if you add acid. After all CaCO3 is consumed, just filter of MgCO3

Related Questions

When a 1.25-gram sample of limestone was dissolved in acid 0.44 gram of CO2 was generated if the rock contained no carbonate other than CaCO3 what was the percent of CaCO3 by mass in the limestone?

CaCO3 +2HCl ------------> CaCl2 + CO2 + H2O number of moles of CO2 in .44 grams = .44/ 44 = .01 From equation it is clear that 1 mole of CO2 is produced from CaCO3 = 1 mole .01 mole of CO2 is formed from CaCO3 = .01 mole Weight of .01 mole of CaCO3 is = .01mole *100 g/mole = 1 gram weight % of CaCO3 is = 1*100/ 1.25 = 80 % w/w I've post my answer, so why don't you show that answer here with the question. It's fare. I must be informed about my answer weather it is right or wrong. Please inform me at amitmahalwar@yahoo.com


Limestone is a compound or element or mixture?

Limestone is principally CaCO3, which is a compound. Because naturally occurring limestone is usually formed from sea shells and ocean bottom debris mixed together, naturally occurring limestone is usually a mixture. Naturally occurring limestone in caves in the form of stalactites and stalagmites can be much more nearly pure than limestone formed from former sea beds, but even these kinds of cave limestone generally contain some materials other than pure CaCO3.


What is the chloride content in limestone?

Limestone typically contains very low levels of chloride, as it is primarily composed of calcium carbonate (CaCO3). The chloride content in natural limestone is usually negligible, often less than 0.1%. However, certain environmental conditions or specific geological formations may result in slightly higher levels, but this is uncommon. Overall, limestone is not a significant source of chlorides.


How much pressure is needed to create limestone?

Limestone is primarily formed from the accumulation of calcium carbonate (CaCO3) through biological processes and sedimentation, rather than from high pressure. However, geological processes that contribute to the formation of limestone can involve pressures of around 3000 to 5000 psi (pounds per square inch) over millions of years, which can cause the compaction and cementation of sediments. This pressure is typically associated with the burial of sediments over time rather than a direct requirement for limestone formation.


Is true or false limestone can be separated from fossils through the use of vinegar?

In most cases both the limestone AND the fossil will be dissolved by the vinegar (eg a crinoid in Carboniferous limestone), so no. However, some fossils (eg echinoderms in the Chalk) are silicified and in these cases dissolving the limestone in vinegar will expose the fossil in spectacular detail and in other cases the fossil will dissolve more slowly than the matrix, so yes. . In other words there is NO true or false answer, fossil preparation and conservation is a discipline in itself.


What rock used to make road other than limestone?

igneous rock


Is granite more porous than limestone?

No. Limestone is more porous than granite.


Two identical statues are placed outside one is made of limestone the other made of granite Which statue will weather more slowly?

The granite statue will weather more slowly than the limestone statue because granite is a more durable and less porous material compared to limestone. Granite is known for its resistance to weathering and erosion, making it a better choice for outdoor sculptures subjected to environmental factors.


What is the passing of liquid through a porous solid material other than soil such as limestone?

Permeability.


What substance other than heat makes water to to spontaneously start to boil?

Limestone(CaCo3.2H2O)


Is chalk harder than limestone?

No, limestone is harder than chalk. Limestone is a sedimentary rock composed mainly of calcite, whereas chalk is a soft, porous sedimentary rock composed mainly of calcium carbonate.


MgCO3 is thermally less stable than CaCO3?

MgCO3 is thermally less stable than CaCO3 because the bond between magnesium and carbonate is weaker than the bond between calcium and carbonate. This leads to MgCO3 decomposing at a lower temperature compared to CaCO3, releasing carbon dioxide gas.