Question

pls answer fast pls answer correct​

Answer 1

Answer :

(a) Chalk :-

• Chalk is a chemical compound.
• Called as Calcium carbonate.
• It's formula is CaCO₃.

∴ The elements present are Ca [Calcium], C [Carbon], O [Oxygen].

(b) Salt :-

• Salt is a ionic compound.
• Called as Sodium chloride.
• It's formula is NaCl.

∴ The elements present are Na [Sodium], Cl [Chlorine].

Answer 2

Explanation:

Chalk is correct answer

Hope this will help you