Scientists are able to identify characteristics of the Earth's inner layers because of and
:: L waves
:: S waves
:: G waves
:: P waves

I believe its :: S waves

Explanation:

b false

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).