Albe Which is the best use of punctuation?
Many people are squeamish around, insects, and rodents.
Our instructor taught us techniques (to help us) master welding.
Upon hearing her diagnosis, she was filled with one emotion: relief.
The children in her afterschool class tend to be immature (and silly).

answer; /// i do believe that the correct answer is (a) boiling

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).