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Reactions of ions in aqueous solution (A-level only) key terms
Use these key terms for Reactions of ions in aqueous solution (A-level only) in AQA Chemistry 7405. The page is built from approved learning objectives for this topic and links back to the wider unit, topic hub, and related revision assets.
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key terms
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Reactions of ions in aqueous solution (A-level only)
Key terms
aqueous metal ions
Metal ions that are dissolved in water, allowing them to react with other substances.
sodium hydroxide reaction
The reaction that occurs when sodium hydroxide is added to aqueous metal ions, often resulting in the formation of metal hydroxide precipitates.
aqueous metal ions
Metal ions that are dissolved in water, often involved in reactions with other substances.
ammonia reaction
The chemical interaction that occurs when aqueous metal ions react with ammonia, often resulting in the formation of precipitates.
carbonate ion test
To identify carbonate ions, add dilute acid to the sample; if carbon dioxide is produced, it indicates the presence of carbonate ions.
sulfate ion test
To identify sulfate ions, add barium chloride solution to the sample; a white precipitate of barium sulfate indicates the presence of sulfate ions.
qualitative analysis
A method used to identify the chemical constituents of a substance by observing the reactions and changes that occur.
observations
The data collected during an experiment, which can include color changes, precipitate formation, or gas evolution, used to draw conclusions about the chemical reactions.
sodium hydroxide
A strong base used in qualitative analysis to test for metal ions by forming precipitates.
ammonia
A weak base that can react with metal ions in solution to form complex ions or precipitates.