Question

ter.
2 Some chalk is mixed in water How
can you tell if the chalk is soluble
of insoluble?​

Answer 1

$\bold{Answer:}$

Chalk is limestone.

Limestone is insoluble in pure water, but is slightly soluble in water containing some dissolved CO₂, due to the formation of Calcium Bicarbonate Ca(HCO₃)₂.

From that fact comes the observation “Dripping water wears the stone.”

By the way, the observation must be pretty old, since this phrase exists as a proverb in many languages:

Is Chalk soluble in water or not?

A mixture in which a substance does not dissolve in water is called a suspension and the substance is said to be insoluble. An example of this type of mixture is chalk in water. Chalk is insoluble - it does not dissolve in water.

Answer 2

Answer:

chalk is insoluble

Explanation:

it is so because chalk and water mixture is a heterogeneous mixtures.PARTICLES OF THE CHALK DO NOT DISSOLVE IN WATER