Chemical Composition of Blackboard Chalk?

Answer Chalk is a finely grained, easy pulverized and porous sedimentary rock that is used in a variety of products such as putty, plaster, cement, quicklime, mortar and rubber goods, in addition to black... Read More »

Top Q&A For: Chemical Composition of Blackboard Chalk

What is blackboard chalk made of?

In the past, blackboard chalk was derived from a sedimentary rock, named chalk, which consisted mostly of calcium carbonate. Today, gypsum is the preferred material for blackboard chalk, as it is m... Read More »

Who invented blackboard chalk?

Chalk is a naturally occurring compound known as calcium carbonate. James Pillans, a Scotsman, is commonly cited as inventing both colored chalk and the blackboard. A teacher at West Point Militar... Read More »

What is the chemical formula for chalk?

Chalk is the common name for the chemical compound known as calcium carbonate, according to International Union of Pure and Applied Chemistry nomenclature. The chemical formula for chalk is CCaO3. ... Read More »

What is the chemical composition of H2O?

H20, or water, is made up of two elements. There are two hydrogen molecules for every one oxygen molecule. They are bonded together and form a bent shape because of a tetrahedral arrangements of mo... Read More »