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Primarily calcium carbonate, derived from the skeletons of very small ancient marine organisms.
chalk is made up of calcium powder and calcium carbonate.
"Blackboard and sidewalk chalk were originally made from the sedimentary rock of the same name; a form of soft limestone. Chalk, composed principally of calcium carbonate (CaCO3), formed underwater by slow accumulation and compression of the calcite shells of single-celledcoccolithophores."

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7y ago
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7mo ago

Chalk is primarily composed of calcium carbonate, a mineral that is also found in limestone and marble. This compound gives chalk its characteristic white color and is commonly used for writing on chalkboards.

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13y ago

True chalk is calcium carbonate, which is composed of calcium, carbon, and oxygen.

The chalk used for chalkboards is actually gypsum, or calcium sulfate, which is composed of calcium, sulfur, and oxygen.

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14y ago

chalks are made out of tiny bits of seashell

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16y ago

Click on the link below for more information.

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13y ago

White chalk is made from the natural substance chalk

and colored chalk is made from chalk and artificial color

Hope this helped

TIKI

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6y ago

Chalk (CaCO3) has five atoms.

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Q: Which substance is chalk made of?
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Related questions

What is the chalk-like substance that gymnasts apply to their hands called?

The chalk-like substance is, in fact, chalk.


Is chalk a pure substance?

Chalk is calcium carbonate - CaCO3. Any chemical compound contain some impurities.


Will side walk chalk rust metal?

Sidewalk chalk is made up on calcium carbonate, which is a mild alkaline substance (a base). Acids corrode metals, bases do not. Therefore, sidewalk chalk should not rust metal.


What substance is used for whitewashing?

Lime and chalk.


What substance is put on the a snooker cue?

Billiards Chalk.


What substance is but on the end of the cue when playing billiards?

Chalk.


What is chalk powder?

Chalk powder is a fine powder made from crushing and grinding natural chalk into a soft, white substance. It is commonly used in various applications, such as in classrooms for writing on chalkboards, in sports for marking playing fields, and in recreational activities like rock climbing.


Why is Flamborough Head made from chalk?

flamborough is made from chalk because it is


Is mixture of chalk and water is a colloid?

No, a mixture of chalk and water is not a colloid. A colloid is a mixture where one substance is evenly dispersed in another substance, forming a homogeneous mixture. Since chalk does not form a homogeneous mixture with water, it is not considered a colloid.


Is there sulfur in chalk?

No, chalk does not contain sulfur. Chalk is primarily composed of calcium carbonate, a mineral substance that does not contain sulfur.


What substance is the main component of chalk and marble?

calcium carbonate


What substance is the put on the end of the cue when playing billiards?

it is chalk