Acids and Bases Vocab Flashcards

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Acid

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A chemical compound that reacts with bases to produce salt and water, has a sour taste, and turns blue litmus paper red.

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Acidic

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Relating to or having the properties of an acid, such as a sour taste and a pH below seven.

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Compound

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A substance made of atoms from two or more elements.

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Litmus Paper

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Treated paper used to test how much acid a solution contains. It turns red in the presence of an acid and blue in the presence of a base.

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Neutral

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In chemistry, neither an acid nor a base.

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PH

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A measure of a solution's alkalinity or acidity, represented on a 14-point scale. Less than seven is acidic, seven is neutral, and more than seven is alkaline.

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Litmus Paper Example

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To test the pH of a solution, the scientist dipped the litmus paper into it.

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Neutral Example

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A neutral substance has a pH of about 7; it's neither acidic nor alkaline.

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PH Example

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The pH scale measured two, so the solution was acidic.

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Reaction Example

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When the color, smell, and taste of the mixture changed, I knew a chemical reaction had taken place.