Just choose one of them. Getting one question wrong isn't the end of the world.
I suggest water.
Answer:
structure of argon
Explanation:
The nucleus contains 18 protons ( red) and 22 neutrons (orange). 18 electrons (white) occupy shells ring.
Answer:
6*10^-3
Hope it helps
Procedure in the attached file
Od. 0-0 does not pair of the Molecules bid it’s polar bond due to certain pairs of molecules not being present within its presentations