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By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation
What is the chemical formula of refractory chalk powder?
CaCO3
Give evidence to support the idea that substances consist of particles?
say for example, instead of a stick of chalk you have powder. Each bit of powder is a particle of chalk, and if you dip your finger into the powder, you can still write on the blackboard with it.
What's the white powder that weight lifters use?
tact or chalk powder for easy griping
What is the kindof the change represented by grinding chalk into a powder?
A physical change.
How do you separate camphor from chalk powder?
by the process of SUBLIMATION.....
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation
What has more friction polished wood or chalk powder or marble?
Chalk powder
Which acid or base is present in chalk powder?
Chalk is neutral.
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 happens to chalk powder if it is added to oil does it float or sink and why?
chalk powder floats.since it's density is less compared to oil"s.
What metal is in chalk?
There are no metals in chalk because it is a non metal. It is also a powder
Where does chalk com from?
chalk comes from chalk deposits the white cliffs of dover is one then the grind it into powder then they press it into molds of chalk then they sell it
Is chalk powder is soluble in water?
ye
What is the chemical formula of refractory chalk powder?
CaCO3
What is the powder gymnast put on called?
It is called chalk.
Can filter paper separate chalk powder?
yes
