the chemical formula for an emerald is be₃al₂(sio₃)₆. an emerald can be described as\no a pure substance…

the chemical formula for an emerald is be₃al₂(sio₃)₆. an emerald can be described as\no a pure substance because it is a compound.\no a pure substance because it is an element.\no an impure substance because it is chemically combined.\no an impure substance because it is a mixture.

the chemical formula for an emerald is be₃al₂(sio₃)₆. an emerald can be described as\no a pure substance because it is a compound.\no a pure substance because it is an element.\no an impure substance because it is chemically combined.\no an impure substance because it is a mixture.

Answer

Answer:

A. a pure substance because it is a compound.

Brief Explanations:

Emerald has a fixed chemical formula ($Be_3Al_2(SiO_3)_6$), indicating it's a compound. Compounds are pure substances.