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Science glossary film: Base (chemistry)

Base (chemistry)

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A substance that reacts with an acid to form a salt and water.

A substance that reacts with an acid to form a salt and water. Bases are usually metal oxides, metal hydroxides, or metal carbonates. Bases accept a hydrogen ion in reactions, and produce hydroxide ions in solutions. Most bases are insoluble in water, but if a base dissolves in water the solution is termed an alkali, and will always have a pH greater than 7.

Bases are usually metal oxides, metal hydroxides, or metal carbonates. Bases accept a hydrogen ion in reactions, and produce hydroxide ions in solutions. Most bases are insoluble in water, but if a base dissolves in water the solution is termed an alkali, and will always have a pH greater than 7.

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