Edexcel GCSE Chemistry · 1CH0
Specification 3.10, 3.19 · Paper 1
Revise: Alkalis as Soluble Bases“Base” is the larger group; “alkali” is the soluble part of that group.
- Revise: Solubility Rules
Able to dissolve in water to form a solution.
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GCSE Chemistry · key term
Able to dissolve in a particular solvent; here, the solvent is water.
Used by Edexcel
Specification 3.10, 3.19 · Paper 1
Revise: Alkalis as Soluble Bases“Base” is the larger group; “alkali” is the soluble part of that group.
Able to dissolve in water to form a solution.
Do not use alkali and alkaline interchangeably: an alkali is a soluble base, while an alkaline solution is the solution it forms in water.
For this specification, classify calcium sulfate as insoluble, even though it is slightly soluble in practice.
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