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Chalk is mostly calcium carbonate, with the formula CaCo3. It is formed from the crushed bodies of tiny sea creatures, which over eons collected as sediment on sea floors, was uplifted, then worn away by erosion and weathering. Chemically speaking, calcium carbonate is the union of the alkaline earth metal calcium and the polyatomic carbonate ion.

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11y ago
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15y ago

calcium carbonate There are many different kinds of chalk. They include calcium sulfate, calcium carbonate, calcium oxide, titanium dioxide, magnesium carbonate, and magnesium silicate. There are, Im next to sure of, more than these but these are the main set of what we refer to as "chalk"

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16y ago

Chalkboard or sidewalk chalk is almost all calcium sulfate. There are some other kinds of chalk, and more information can be found here: http://en.wikipedia.org/wiki/Chalk

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15y ago

Chalk is also known as limestone - or calcium carbonate; CaCO3. So to answer your question, Calcium, Carbon and Oxygen are found in chalk.

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11y ago

Chalk is a white porous sedimentary rock - a form of limestone that is made up of the mineral calcite or calcium carbonate whose chemical formula is

CaCO3

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12y ago

Chalk contains calcium carbonate (CaCO3)

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Q: What is the chemical composition of chalk?
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Related questions

How do you separate chalk water?

Due to the chemical composition of Chalk, you can separate it from water either by filtration of evaporation.


What is the composition of chalk?

gypsum CaSO4


Limestone is the chemical content of chalk?

The chemical formula of chalk or limestone is calcium carbonate (CaCO3).


What is the chemical formula of chalk?

Chalk is CaCO3. The chemical name for chalk is calcium carbonate. It is a porous sedimentary rock, and is also a type of limestone. The White Cliffs of Dover are actually made from chalk.


Is a chalk grinding a physical change?

It doesn't matter if something is reversible or irreversible. it will not depend if it is a chemical or physical change. A physical change is when the composition of a substance remains unaltered (the particles stay the same) and no new substance is produced. Such as when you make a paper plane out of paper, the appearance changed, the particles stayed the same, no new substance was created, and the paper remains paper. A chemical change is when the composition of a substance is altered and a new substance is produced. Such as when paper is burned, the new substance produced is the carbon and other gases from the fire, and the composition of the paper changes, slowly disappearing.It usually is unless you draw so rapidly that the heat of the friction heats the paper and causes it to smoke.


What is the chemical symbol for chalk?

it is C4HO2


When water evaporates its chemical composition?

The chemical composition remain unchanged.


What is chemical composition of kf reagent?

What is the chemical composition of kf reagent


When ice melts what happens to its chemical composition?

the chemical composition does not change.


When chalk is crushed is it a physical or chemical property?

I would say it is a physical change the chalk is being reduced to a smaller size. It still remains chalk.


How do you know if chalk contains calcium carbonate?

Through chemical analysis of a piece of chalk!


What kind of mixture is chalk?

Chalk is not a mixture it is a chemical compound called Calcium carbonate.