Answer:
In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen O, or ozone, a molecule of three oxygen atoms, O3. Even though each of these is all oxygen, combining atoms of the same element may give very different properties to the molecule.
Explanation:
Answer:
I think the answer is B, but I'm not too sure.
I'd probably say c. because the other options don't make too much sense.
<span>because it was the first tool of mass communication that made the exchange of information possible.</span>
I think the answer is A, let me know if I’m wrong
