14. within a single use of the scientific method, which of the following steps can only be performed after data is collected? a. conclusions are drawn. b. the initial experiment is designed. c. controls and variables are chosen. d. the initial hypothesis is formed.

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).