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When you write on the board with a piece of chalk an irritating noise results when the chalk is held at some angles yet this does not happen at any other angles Why?
The irritating noise when writing on a chalkboard happens at certain angles due to a phenomenon known as "stick-slip motion." When the chalk is held at these angles, it alternates between sticking and slipping on the board surface, creating vibrations that produce the noise. At other angles, the chalk moves more smoothly without the stick-slip behavior, resulting in no noise.
Why it is possible to write on rough black board?
It is easy to write on a rough blackboard. The friction between the chalk and the rough surface is what allows the chalk to leave behind the chalk dust that we see. Actually it would impossible to write on a theoretically smooth blackboard. Without the friction, the chalk would not leave any residue!
Why are bubbles formed when chalk is dipped in water?
Bubbles are formed when chalk is dipped in water due to the release of carbon dioxide gas. Chalk is made of calcium carbonate, which reacts with the water to produce carbon dioxide gas bubbles. This reaction is known as effervescence.
What is chalk?
chalk is a very pure form of limestone made of calcite. i think >:P
Can a rubber band a piece of chalk or a skirt be more easily broken?
A rubber band would be more easily broken than a piece of chalk or a skirt. Rubber bands are designed to stretch and be flexible, making them more likely to break when stretched beyond their limits. A piece of chalk is more rigid and a skirt is made of fabric, which are not as easily broken by stretching or bending.
Why is chalk in water is a suspension?
Because chalk isn't soluble.
Is chalk a suspension?
chalk is insoluble so it is a suspension because it cannot dissovle so there you have it folks from your pal Bugs bunny
What mixture is this powdered chalk and water?
This is a suspension.
Is chalk dust a solution?
i think it would be a suspension
How do you separate suspension of chalk in water?
Filtration would separate the water, leaving the chalk particles behind.
How do you separate a suspension of chalk in water?
Filtration would separate the water, leaving the chalk particles behind.
What is the other answer in chalk in the water for suspension?
The phrase "chalk in the water for suspension" typically refers to using chalk (calcium carbonate) as a suspended particulate in a liquid. When chalk is added to water, it does not dissolve completely, creating a suspension where the chalk particles remain distributed throughout the liquid. This can be used for various applications, such as in educational demonstrations or in certain industrial processes. Another answer in this context could refer to alternatives like clay or other minerals that can also form suspensions in water.
Is chalk in water a suspension?
yes,it is a suspension because it is a heterogeneous mixture which is given in the question so it can not be a true solution. in the case of suspension the chalk powder in water is insoluble and the particle size is more than 2000 but in colloidal solution both in dispersed phase and dispersed medium the particles are soluble. so, it is a suspension.generally chalk powder in water is insoluble
When chalk dust dissolve in water it is called?
When chalk (the mineral) dissolves in water, it's called "limewater".
Is chalk powder is soluble in water or not?
No chalk is not solouble. When chalk is put in water the water becomes a suspension ie the particles of chalk keep floating in water.
What is a chalk powder in a water it is solutionsuspension or a colloid?
When chalk powder is mixed with water, it forms a suspension. In a suspension, the particles of the chalk powder are not dissolved in the water but rather dispersed throughout, giving it a cloudy appearance. A colloid would involve smaller particles that are evenly dispersed and do not settle out over time.
What happens when you put chalk into water?
If you put a piece of chalk in water, don't expect much to happen. The chalk, which is calcium carbonate (CaCO3), will displace some water and sink. It will grow in mass by a small amount since it is permeable and is absorbing the water.
