Question 7 (5 points) (05.01 LC)
One mole of zinc has a mass of 65.4 grams. Approximately how many atoms of zinc are present in one mole of zinc?

6.02 x 10²³ atoms

Explanation:

The number of moles present in 1 mole of zinc will be 6.02 x 10²³ atoms. This is because a mole of any substance contains the Avogadro's number of particles which is 6.02 x 10²³ atoms.

A mole is simple a convenient way of estimating the number particles within a substance.

So every 1 mole of  a substance contains the same number atom in there.

For the give zinc, since it is 1 mole, it will contain 6.02 x 10²³ atoms

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).