The wavelength of a wave can be found by measuring how high the wave is measuring how many waves pass a point in a second measuring the distance from the crest of one wave to the crest of the next wave measuring the distance from the crest of one wave to the trough of the next wave

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).