Question

Which statement is true about sodium chloride (NaCl)?

It is a salt because it decreases the concentration of metallic ions.
It is an acid because it is formed by the reaction of a salt and an acid.
It is a salt because it is formed by the reaction of an acid and a base.
It is an acid because it increases the concentration of nonmetallic ions

Answer 1

Answer:

The correct answer is : It is a salt because it is formed by the reaction of an acid and a base.

Explanation:

Sodium chloride is formed from the neutralization reaction between a strong acid (hydrochloric acid) and a strong base (sodium hydroxide):

HCl + NaOH ---> NaCl + H20

By reacting strong acid and base, they neutralize each other resulting in a salt (NaCl) and water.

Corresponds to an exothermic reaction (heat is released).

Answer 2

Answer: C

Explanation: I have just did the test and

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