Question

CO2
NaCl
HCl
These may all be classified as


A)
elements and compounds.


B)
elements and molecules.


C)
elements and pure substances.


D)
compounds and pure substances.

Answer 1

Wrong subject, small chance someone is going to be able to help you out.

Answer 2

I'm pretty sure it's A, but not positive.

Answer 3

Well see i tried my question in biology

Answer 4

Nobody helped! Alrighty thank you ill see

Answer 5

a or d, none of them are just one element so deductive reasoning says?

Answer 6

Let's see if my chemistry is not rusty.
But a "compound" is SUBSTANCE that unifies two or more elements.

Answer 7

Okay