In order to test how the amount of fertilizer affects the growth of a plant, which would be the independent variable?
a. type of fertilizer
c. amount of fertilizer
b. amount of water
d. growth of the plant

So then, sodium ions will attract chloride ions and form an ionic bond. By the way, chloride is the term used to designate the anion form of chlorine. The result is a crystallized salt that has properties that are different from the two parent elements (sodium and chlorine).