Calculate the pH of a 0.35 M solution of pyridine (C 5H 5N; K b = 1.7 × 10 –9): a.
4.61
b.
4.77
c.
9.39
d.
9.23
e.
none of these

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

a polar bond is formed when electrons are shared unevenly between atoms