Acids Bases and pH Test

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What is an acid?

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An acid is a substance that donates hydrogen ions (H⁺) in a solution, typically having a sour taste and a pH less than 7.

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What is a base?

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A base is a substance that accepts hydrogen ions (H⁺) or donates hydroxide ions (OH^-) in a solution, usually having a bitter taste and a pH greater than 7.

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What does the pH scale measure?

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The pH scale measures the concentration of hydrogen ions (H⁺) in a solution, indicating how acidic or basic the solution is.

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What is the pH range of acids?

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The pH range of acids is from 0 to 7.

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What is the pH range of bases?

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The pH range of bases is from 7 to 14.

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What is neutral pH?

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A neutral pH is 7, which indicates a balance between hydrogen ions (H⁺) and hydroxide ions (OH^-).

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What is a strong acid?

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A strong acid is an acid that completely dissociates in water, releasing all of its hydrogen ions (H⁺), such as hydrochloric acid (HCl).

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What is a weak acid?

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A weak acid is an acid that partially dissociates in water, releasing some but not all of its hydrogen ions (H⁺), such as acetic acid (CH₃COOH).

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What is a strong base?

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A strong base is a base that completely dissociates in water, releasing all of its hydroxide ions (OH^-), such as sodium hydroxide (NaOH).

Front

What is a weak base?

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A weak base is a base that partially dissociates in water, releasing some but not all of its hydroxide ions (OH^-), such as ammonia (NH₃).