Answer:
C
Explanation:
An oxyanion is an anion containing oxygen.
It should contain O and contain net negative charge on the anion.
The only option satisfying is C.
Most elements can form oxyanions, meeting the conditions of the octet rule.
The PH level of the surface of the water is 9.0
Hope this helps
Answer:
C.
Explanation:
This is a reaction of elimination, because the water was removed and because of it double bond is formed.
So, the answer would be 20 cm
Melting points and boiling points of molecular compound are usually lower than ionic compounds. This is so as only a small amount of energy is required to overcome the weak intermolecular forces of attraction (Van de Waals forces) thus having lower m.p. and b.p.
Ionic compounds require a large amount of energy to overcome the strong electrostatic forces of attraction between the ions, hence having higher mp and bp