Question

I. O2 is chemically bonded together.

II. O2 is divisible.

III. Oxygen is a nonmetal.

IV. The natural state of oxygen is as a diatomic gas.
Which conclusion can be drawn from these statements about O2?
A) O2 is an atom.
B) O2 is a molecule.
C) O2 is an electron.
D) O2 is an element.

Answer 1

THE ANSWER IS B SORRY FOR THE CAPS(:

Answer 2

Answer is: B) O2 is a molecule.

Pure substance is made of only one type of atom (element) or only one type of molecule (compound).

For example, hydrogen peroxide (H₂O₂), sodium chloride (NaCl) are compounds, lithium (Li) is an element and oxygen (O₂) is a molecule.

Molecules can be homonuclear (molecule made of two atoms of the same element, in this example oxygen) and heteronuclear (molecule made of two different atoms, for example water).