A group of hunting cats are living in an area. Over time, these cats become faster and faster sprinters. They cannot keep their speed for
long, but they are extremely fast in short distances.
What can we say about these cats?

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).

there are two significant figures.