Combined Science GCSE
Acids
What Acids means in Combined Science GCSE, as defined for AQA.
Definition of Acids
Check what you remember
Read the wording for your board, then hide it and explain Acids in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Substances that produce hydrogen ions, H⁺, when dissolved in water, and only show acidic behaviour when water is present.
Topics that use Acids
- The pH scale and neutralisation (AQA GCSE)
Related terms
- Hydroxide ions
- Ionic reactions in solution
- Neutral solutions
- Neutralisation
- pH scale
- Representing reactions with word and symbol equations
- The pH scale
- Universal indicator
Using Acids in the exam
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