Suggest two reasons why some chemicals remain unchanged in the
environment for a long time

hi

Explanation:

ok bey

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

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).