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.
To separate salt from chalk, you can dissolve the mixture in water. Salt is soluble in water while chalk is not. After dissolving, you can filter the mixture to separate the insoluble chalk from the salt solution. By evaporating the water from the salt solution, you can obtain the salt crystals.
Sand and chalk are not a homogeneous mixture because they do not have a uniform composition, meaning their components are visibly distinguishable from each other. Sand consists of larger particles like silica, while chalk is composed of calcium carbonate.
One way to separate chalk and sugar is by dissolving the mixture in water - the sugar will dissolve while the chalk will not. The two can then be separated by filtering the mixture to collect the chalk residue from the filter paper and allowing the water to evaporate to collect the sugar.
When chalk is dissolved, the solid particles of chalk break down and disperse into the liquid it is dissolved in. This results in a homogeneous mixture where the chalk particles are spread out evenly throughout the liquid.
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
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.
it is a mixture of white paint and white chalk
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.
This is a suspension.
To separate salt from chalk, you can dissolve the mixture in water. Salt is soluble in water while chalk is not. After dissolving, you can filter the mixture to separate the insoluble chalk from the salt solution. By evaporating the water from the salt solution, you can obtain the salt crystals.
Chalk is Calcium Carbonate, aka CaCO3, so it's only one substance.
compound
treatment of diarrhoea
Sand and chalk are not a homogeneous mixture because they do not have a uniform composition, meaning their components are visibly distinguishable from each other. Sand consists of larger particles like silica, while chalk is composed of calcium carbonate.