Chalk is an ionic compound. Which is a property of all ionic compounds that makes chalk particularly useful for writing on a chalkboard? a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance
Physics · High School · Sun Jan 24 2021
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The property of chalk that makes it particularly useful for writing on a chalkboard is its inability to dissolve in water.
Chalk is composed mainly of calcium carbonate, which is an ionic compound.
When it is used on a chalkboard, the chalk particles don't readily dissolve in water or the moisture present on the chalkboard surface.
Instead, they adhere to the board, allowing for smooth writing and clear markings.