Question

Chalk dissolves in water. True or False​

Answer 1

Answer:

False

Explanation:

Chalk's main component is CaCO3 , calcium carbonate. The solubility of calcium carbonate is extremely low in water, so therefore an extremely minute amount of CaCO3 is able to dissolve in a normal amount of water. The rest would remain solid, classifying it as mostly insoluble in water.

Answer 2

False – Chalk doesn’t dissolve in water.

Explanation:

• Calcium carbonate is a mineral made up of calcium and carbon Chalk's major component is calcium carbonate. $(CaCO3)$ Because calcium carbonate has very poor solubility in water, only a very small amount of$(CaCO3)$ can dissolve in a regular volume of water. Chalk has a low water solubility, hence it takes a long time for it to dissolve in water.

1. When carbon dioxide is added to lime water, it causes a white precipitate to form. However, with the evolution of $CO2$, all carbonates are rapidly dissolved by acids into soluble salts.