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Chalk powder does not undergo sublimation; instead, it primarily consists of calcium carbonate, which decomposes upon heating rather than transitioning directly from solid to gas. Sublimation is the process where certain substances, like dry ice (solid carbon dioxide), change from solid to gas without becoming liquid first. In contrast, when heated, chalk may release carbon dioxide while transforming into calcium oxide, a different chemical compound.
What else can I help you with?
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
What has the larger surface area a lump of chalk or chalk powder?
Chalk powder has a larger surface area compared to a lump of chalk. This is because the process of grinding chalk into powder increases the total surface area exposed to the surrounding environment. As a result, the smaller particles of chalk powder provide more surface area for reactions, interactions, or absorption than a single lump of chalk.
What process are going to do to separate fine sand and chalk powder?
To separate fine sand and chalk powder, you can use a method involving water and filtration. First, mix the sand and chalk powder with water to create a slurry; the chalk powder will dissolve in water while the sand will settle at the bottom. After allowing the mixture to sit, pour off the liquid, which contains the dissolved chalk, leaving the sand behind. Finally, you can dry the sand and collect the chalk powder from the filtered liquid by evaporation.
What is chalk powder?
Chalk powder is a fine powder made from crushing and grinding natural chalk into a soft, white substance. It is commonly used in various applications, such as in classrooms for writing on chalkboards, in sports for marking playing fields, and in recreational activities like rock climbing.
What is the chemical formula of refractory chalk powder?
CaCO3
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
How do you separate camphor from chalk powder?
Camphor can be separated from chalk powder using sublimation. Heating the mixture will cause the camphor to sublime (convert directly from solid to gas) and leave behind the chalk powder. The camphor gas can then be collected and allowed to solidify back into crystals.
How do you separate a mixture of ammonium chloride and chalk powder in the laboratory?
Oh, dude, separating ammonium chloride and chalk powder? Easy peasy. So, you just gotta add water to the mixture, 'cause ammonium chloride dissolves in water while chalk powder doesn't. Then you can filter out the chalk powder 'cause it won't dissolve, leaving you with the ammonium chloride solution. Like, science, man.
What has more friction polished wood or chalk powder or marble?
Chalk powder
What has the larger surface area a lump of chalk or chalk powder?
Chalk powder has a larger surface area compared to a lump of chalk. This is because the process of grinding chalk into powder increases the total surface area exposed to the surrounding environment. As a result, the smaller particles of chalk powder provide more surface area for reactions, interactions, or absorption than a single lump of chalk.
Which acid or base is present in chalk powder?
Chalk is neutral.
Can filter paper separate chalk powder?
No, filter paper is not suitable for separating chalk powder. Chalk powder is insoluble in water, so it will not pass through the filter paper when mixed with water. To separate chalk powder from water, you can use techniques like sedimentation or decantation.
Is breaking a lump of chalk to make powder a chemical reaction?
Breaking a lump of chalk into powder is a physical change, not a chemical reaction. The chemical composition of the chalk remains the same before and after breaking it into powder.
What kind change is grinding chalk into powder?
Grinding chalk really doesn't change the chalk except to make it into powder. So that makes it a physical change. It is much like ice melting into water.
What process are going to do to separate fine sand and chalk powder?
To separate fine sand and chalk powder, you can use a method involving water and filtration. First, mix the sand and chalk powder with water to create a slurry; the chalk powder will dissolve in water while the sand will settle at the bottom. After allowing the mixture to sit, pour off the liquid, which contains the dissolved chalk, leaving the sand behind. Finally, you can dry the sand and collect the chalk powder from the filtered liquid by evaporation.
What metal is in chalk?
There are no metals in chalk because it is a non metal. It is also a powder
Is chalk powder is soluble in water?
ye
