From rice cereal made into powder, couldn't you just have googled it?
This is some chalk.
Chalk is a form of calcium carbonate, so chalk dust is also a form of calcium carbonate.
Chalk is a form of calcium carbonate - CaCO3.
Chalk is a form of limestone, or calcium carbonate (CaCO3). Refer to the related links for more information about chalk.
Chalk is a form of limestone, a sedimentary rock.
Chalk powder, which is composed mainly of calcium carbonate, will not form a true solution when mixed with water. Instead, it will form a suspension where the particles of chalk remain suspended in the water without fully dissolving. If left undisturbed, the chalk particles may settle at the bottom of the container over time.
Chalk typically comes in the form of cylindrical sticks or rods, with a diameter ranging from a few millimeters to a centimeter. Some chalk may also be produced in the form of cubes or blocks for specific applications.
No, chalk does not contain sulfur. Chalk is primarily composed of calcium carbonate, a mineral substance that does not contain sulfur.
No, once chalk dust has been created from a chalk stick, it cannot be transformed back into a solid piece of chalk. The dust particles are broken down and cannot reassemble into a solid form.
Chalk is a fossil itself and chalk is soft, and so while you might form a fossil; in it, it would not remain. Within chalk there is often harder rock - which sometimes does contain fossils.
Chalk is calcium carbonate, a salt, but it is mildly basic.
Chalk is a naturally occurring form of limestone, composed of the mineral calcite.