Question

hey people! pls give details about how to write a public review?​

Answer 1

start with respected audience, members of the committee.

Then analyse the topic.

Then write your noble thoughts about it.

Then tell about its importance.

how it will help to remove problems.

then mention how to maintain it.

create such a mood, that you have endless speech to say but, you have to end it.

end by thank you.

Answer 2

The reason for the atomic mass of chlorine taken as 35.5u and not as 35u because of the presence of isotopes. Isotopes are defined as variants of a particular element where these variants will have the same number of protons but differ in the number of neutrons in the atom.