What is the frequency of light (in per seconds) that has a wavelength of 670 nm? ​

Explanation:

Given that,

The wavelength of light,

We need to find the frequency of the light. The relation between the frequency and wavelength is given by :

The speed of light is equal to c.

So,

So, the frequency of light is equal to .

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).

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