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Published byHarold Parker Modified over 8 years ago
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Lesson 25 Why do some liquids conduct electricity?
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Solutions of acids, bases, and salts conduct electricity. Solids of acids, bases and salts do not. Neither do liquids like alcohol, sugar water, distilled water and glycerine.
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Why do solutions of acids, bases and salts conduct electricity? Matter is made of atoms. Sometimes atoms join together to form molecules.
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Most atoms and molecules have no electrical charge. They are neutral. The atoms of substances that are not acids, bases, or salts stay neutral, even when they dissolve.
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When an acid, base, or salt dissolves, its atoms do not stay together. The atoms unlock. Whey they unlock, they do not stay neutral.
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They take on electrical charges. Some take on a positive charge. (+) Some a negative charge. (-) Charged atoms are called ions.
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Ions let electricity pass through a solution. Solutions that have ions are called electrolytes. Liquid acids, bases, and salts form ions. That is why they conduct electricity.
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Liquids such as alcohol, sugar water, distilled water, and glycerin do not form ions. That is why they do not conduct electricity. They are non-electrolytes.
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