Form 14: Dissolving Salts & Solution Changes Exercise

Form 14: Dissolving Salts & Solution Changes

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Form 14: Dissolving Salts & Solution Changes

In this engaging exercise, students will explore the fascinating world of solubility by experimenting with different salts and observing how their dissolution alters solution properties, such as conductivity and color. Through hands-on activities and guided discussions, they will deepen their understanding of chemical reactions and the behavior of solutions in everyday life.

Questions

  1. MultiChoice

    Dissolving sodium hydroxide in water raises the solution temperature. This dissolving process is:

  2. MultiChoice

    Dissolving ammonium nitrate in water lowers the solution temperature. This dissolving process is:

  3. MultiChoice

    When calcium chloride dissolves in water, thermal energy is released. Dissolving calcium chloride is:

  4. MultiChoice

    Dissolving potassium chloride causes water temperature to drop from 22°C to 18°C. It is:

  5. MultiChoice

    What two energetic steps occur when an ionic salt dissolves in water?

  6. MultiChoice

    Separating solute ions from each other in a crystal lattice always:

  7. MultiChoice

    Attracting water molecules around dissolved ions (hydration) always:

  8. MultiChoice

    If lattice separation energy is greater than hydration energy, dissolving is overall:

  9. MultiChoice

    If hydration energy is greater than lattice separation energy, dissolving is overall:

  10. MultiChoice

    Dissolving table salt in water is classified as a:

  11. MultiChoice

    Which salt would be best suited for making an instant heat pack?

  12. MultiChoice

    Which salt would be best suited for making an instant cold pack?