0
What else can I help you with?
Why chalk is write on the board?
Chalk is able to write on a board because of its soft texture. When dragged across a rough surface like a chalkboard, the chalk leaves behind particles that stick to the surface, creating readable markings.
When written in wet chalk first it is not visible but later it is visible why?
Some of the chalk is dissolved into the water and so when you write on a board the chalk can not easily be seen. The water then evaporates leaving only chalk behind therefore becoming visible.
What is the difference between dustless chalk and normal chalk?
* The particles of dustless chalk are very heavy and tend to fall directly to the floor instead of floating in the air, while the particles of the normal chalk floats in the air. * The dustless chalk writes smoothly without scratch, while the normal chalk leaves some scratches on the board. * The dustless chalk does not break easily while the normal chalk breaks easily.
What happens chalk gets dissolved?
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.
What is the solute and solvent in chalk water?
Water is the solvent and chalk is the solute.
Why chalk is write on the board?
Chalk is able to write on a board because of its soft texture. When dragged across a rough surface like a chalkboard, the chalk leaves behind particles that stick to the surface, creating readable markings.
Is chalk a mixture or a solution?
Chalk is Calcium Carbonate, aka CaCO3, so it's only one substance.
Where can chalk be found?
near a chalk board
Why does a piece of chalk wear out as it is used on a blackboard?
With every stroke of the chalk piece it leaves some of the chalk on the board. This abrasion of the piece of chalk causes it to wear down. This is similar to why the rubber tyres of cars wear down when they are driven over a road surface.
When written in wet chalk first it is not visible but later it is visible why?
Some of the chalk is dissolved into the water and so when you write on a board the chalk can not easily be seen. The water then evaporates leaving only chalk behind therefore becoming visible.
What is the difference between dustless chalk and normal chalk?
* The particles of dustless chalk are very heavy and tend to fall directly to the floor instead of floating in the air, while the particles of the normal chalk floats in the air. * The dustless chalk writes smoothly without scratch, while the normal chalk leaves some scratches on the board. * The dustless chalk does not break easily while the normal chalk breaks easily.
What pioneers used to write with on a chalk board?
Chalk
Why is it possible to write on a blackboard with chalk?
Chalk is made of calcium carbonate, a soft mineral that leaves a visible mark when drawn on a rough surface like a blackboard. When drawn on the blackboard, chalk particles rub off and stick to the surface due to friction, creating a visible line.
Why your black board does look white after using again and again?
because the particles of the chalk or any other substance which is used to write on black board has very tiny particles which get attached with white board.
What happens chalk gets dissolved?
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.
What is the Luhya translation of chalk board?
The Luhya translation of the English words 'chalk board' is "lisisi lie ichoka".
What does the expression digesting a precipitate mean?
Pooping without wiping and using the terd as sidewalk chalk
