Question

14. Classified into elements and compound Cu,F2 ,O2,NaCl,Hg,Zn,CaCO3,sand.

Answer 1

Answer:

element, molecule, molecule, compound, element, element, compound, compound

Answer 2

Answer:

Cu- Element

F2- Element

O2- Element but it is really considered as a molecule

NaCl- Compound

Hg- Element

Zn- Element

CaCO3- Compound

Sand- Mixture neither element not compound