Solubility question?

When it comes to solubility of a chemical, if a soluble chemical were to react with an insoluble chemical does it just indicate that it’ll probably be a precipitate or that it doesn’t react? If it is precipitate how can I predict that it’ll either be a gas or solid?

2 Answers

  • 2 months ago

    If there is a reaction, then obviously there is no "it will not react" option. You cannot predict the physical state of the reaction product until you determine what that product will be, so there is no generic answer to your question.

  • 2 months ago

    Compounds in solution can react with other insoluble compounds to produce soluble products

     Example: HCl reacting with CaCO3

     2HCl(aq) + CaCO3(s) → CaCl2(aq) + CO2(g) + H2O(l)

    But if a compound in solution reacts with an insoluble compound it is also possible to have an insoluble product


     H2SO4(aq) + CaCO3(s) → CaSO4(s) + CO2(g) + H2O(l)

    This produces insoluble CaSO4 - this will form a barrier between the unreacted CaCO3 and the H2SO4 and the reaction will stop.

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