1. Dissolving
vs.
Dissociating
Sugar vs. Salt

2. Explain the solution process of simple ionic and covalent compounds.
Include: dissociation, hydration, heat of solution
Additional KEY Terms
Electrolyte Non-electrolyte

3. **The general dissolving rule is like dissolves like.**
Dissociating: the process of separating into charged parts when dissolving.
Only ionic and very polar covalent compounds will dissociate. - Cl H δ+ Cl δ- + Na

4. √ - polar solvent ionic solute Dissociate δ+ δ+ δ- + H H O H O O H ONa Cl Cl + Na

5. √ polar solvent very polar solute Dissociate δ+ δ+ δ- δ+ δ- H H O H OCl H H Cl δ-

6. Dissolves as whole – no charged particles.
polar solvent polar solute H O H O δ- δ- δ+ δ+ δ+ δ- H O C H O C
No separation
Dissolves as whole – no charged particles.
Dissociate

7. Electrolytes:
Charged particles in a solution can conduct an electric current
If it dissociates (ionic and very polar), it creates electrolytes
*The more soluble a solute is, the more electrolytes produced, the stronger the current*
Non-polar and weakly polar compounds are non-electrolytes.

9. Charged particles carry electricity.
Ions
Charged particles carry electricity.

10. The dissociation or ionization of a substance in water can be shown using chemical equations.
NaCl(s) Na+(aq) + Cl–(aq)
electrolytes
C11H22O11(s) C11H22O11(aq)
non-electrolyte
CH3COOH CH3COO-(aq) + H+(aq)
electrolytes
Step 1a: Determine if the compound is polar.
1b: If ionic, write the ions.
Step 2: Use subscripts as coefficients.
Step 3: Write equation using appropriate states.

11. Al2(SO4)3 Al+3 SO4-2 Al2(SO4)3 (s) 2 Al+3 (aq) 3 SO4-2 (aq)
Write the equation for aqueous aluminum sulphate. 1
metal
polyatomic ion
Al2(SO4)3 3
Al SO4-2 2
2 Al+3 (aq) 3 SO4-2 (aq)
Al2(SO4)3 (s) 4

12. CAN YOU / HAVE YOU?
Explain the solution process of simple ionic and covalent compounds.
Include: dissociation, hydration, heat of solution
Additional KEY Terms
Electrolyte Non-electrolyte