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C2.5.1 - C2.5.3
Acids, Alkalis, Bases and Salts
| Question | Answer |
|---|---|
| What is an acid? | A substance which produces hydrogen ions when they are added to water |
| What is a base? | A substance which reacts with acids to neutralise them |
| What is an alkali? | A base which dissolves in water to make an alkaline solution. |
| What ions to alkalies produce when they are dissolved in water? | Hydroxide Ions |
| Which metals do acids react with? | Ones which are above hydrogen in the reactivity series |
| Acid + Metal → | Salt + Hydrogen Gas |
| What are metal oxides and metal hydroxides? | Bases |
| Acid + Base → | Salt + Water |
| Acid + Alkali → | Salt + Water |
| What is ammonia solution? | An alkali which doesn't contain a metal |
| Acid + Ammonia Solution → | Ammonium Salt + Water |