Question

describe the changes in appearance of the substances when sodium and chlorine combine to form sodium chloride

Answer 1

Explanation:

Sodium + Chlorine: ... When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.

Answer 2

Explanation:

sodium is a metal where as chlorine is a gas when both of them combine they form sodium chloride which is white crystaline salt