40 points how is a salt created? (3 points)

When cation of metal and anion of non metal are combine they form salt.

Explanation:

When cation of metal and anion of non metal are combine they form salt. Consider the example of sodium chloride.

Sodium chloride is salt and also an ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion. Both atoms are bonded together electrostatic attraction occur between anion and cations and form salt sodium chloride.

Salt is formed during the neutralization reaction of acid and base.

For example:

When sodium hydroxide and hydrochloric acid react they form sodium chloride and water.

NaOH + HCl →  NaCl + H₂O