It's a pure substance because even though the atoms are different they still the same. If that makes sense?
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.
Chalk is a type of limestone composed primarily of calcium carbonate. In its pure form, chalk is considered a pure substance because it has a uniform and definite chemical composition. However, commercially available chalk may contain impurities or additives, making it a mixture.
Chalk is Calcium Carbonate, aka CaCO3, so it's only one substance.
The chalk-like substance is, in fact, chalk.
chalk is a compound
No, a mixture of sugar and chalk is considered heterogeneous. This is because sugar and chalk do not dissolve in each other, so they would have visible differences and not form a uniform composition throughout the mixture.
chalk is a compound
Chalk is a heterogeneous substance because it is composed of various materials such as calcium carbonate, quartz, clay, and other minerals. These materials are not uniformly distributed throughout the chalk, resulting in a non-uniform composition.
it is a mixture of white paint and white chalk
An element - substance - NOT a mixture.
a mixture is not a substance
Chalk is a mechanical mixture, which means it is a combination of different substances that are physically mixed together but not chemically bonded. It is composed mainly of calcium carbonate and other minerals.