Yes. You might wish to verify this using the wikipedia article about talc.
Talc is a common mineral; it is a very known material, not expensive.
because it consists of small particles that are similar to liquid. Even if we add water to a powdered chalk, it dissolves easily whereas a lump of chalk is harder to dissolve in water.
Talk about Talc!
Talc is mildly basic, with a pH of ~9.
Talc is very expensive, its a nice mineral.
In most compact powders the main ingredient is talc. Talc is hydrated magnesium silicate. Some compact powders can contain types of clay or chalk as well as talc.
yes they do, to help the chalk adhere and provide a good grip while also protecting the skin on their palms.
Talc is a common mineral; it is a very known material, not expensive.
The word for chalk is "craie" and a chalkboard is "tableau noir" (blackboard).
tableau
Talk about talc!
Chalk is "de la craie" when you are considering the rock. A piece of chalk is "une craie" (fem.) The expressions: - Not by a long chalk = Loin s'en faut - By a long chalk = De loin
of 14th Century origins, French talc, Spanish talco, Arabic talq and Persian talk. The Medieval Latin word was Talcum
"une craie" means a chalk in French
Yes "blackboard chalk", it is formed from the microscopic pieces of calcite (coccoliths) from sea micro-organisms. Soem other compounds are sometimes called chalk- e.g. "tailors chalk a very hard chalk used to mark cloth is often made from compressed "talc" a silicate mineral.
craie brosses
yes it sinks because it doesn't have air inside so it doesn't float