When pure water and sodium chloride combine, they create a chemical change and form sodium hydroxide and hydrogen chloride. option C is correct.
Pure water is also known as distill water the concentration of hydroxyl ions and hydronium ions are equal in the pure water the pH of the solution 7 and it is neutral in nature.
While adding something to it the ions of HOH gets dissociate and will be on H+ and OH- and the other chemical species forms bond with it into their constituent ions.
In pure water as sodium chloride is added to it it forms sodium hydroxide and hydrogen chloride
HOH + NaCl will give NaOH sodium hydroxide and HCl hydrogen chloride they form two different chemicals change with it.
Therefore, pure water and sodium chloride combine, they create a chemical change and form sodium hydroxide and hydrogen chloride. option C is correct.
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