If a solution has a pH of 7, it is considered neutral.

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Multiple Choice

If a solution has a pH of 7, it is considered neutral.

Explanation:
pH measures how acidic or basic a solution is based on hydrogen ion concentration. The scale runs from 0 to 14: acids have pH below 7, bases above 7, and neutral solutions sit at pH 7. At pH 7, the hydrogen ion concentration equals the hydroxide ion concentration, so the solution is neither acidic nor basic. In pure water at room temperature, [H+] and [OH−] are both about 1×10^-7 M, which is why it’s considered neutral. Saline refers to salt content and doesn’t define acidity, so it isn’t the descriptor here.

pH measures how acidic or basic a solution is based on hydrogen ion concentration. The scale runs from 0 to 14: acids have pH below 7, bases above 7, and neutral solutions sit at pH 7. At pH 7, the hydrogen ion concentration equals the hydroxide ion concentration, so the solution is neither acidic nor basic. In pure water at room temperature, [H+] and [OH−] are both about 1×10^-7 M, which is why it’s considered neutral. Saline refers to salt content and doesn’t define acidity, so it isn’t the descriptor here.

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