1. Solution A is a homogeneous mixture.
2. Solution B is a heterogeneous mixture.
3. Solution C is a suspension.
4. Solution A: clear, uniform appearance; Solution B: cloudy, non-uniform appearance; Solution C: particles visible and settling at bottom.
5. If left undisturbed, Solution C will have particles settle at the bottom over time.
6. Solution A has the highest concentration of solute.
7. Solution B has the lowest concentration of solute.
8. To make Solution A more concentrated, add more solute or evaporate some solvent.
9. To make Solution B less concentrated, add more solvent.
10. Solution A is most likely to be saturated if no more solute can dissolve at that temperature.
11. Solution C is least likely to be saturated because it contains undissolved particles that could potentially dissolve with stirring or heating.
12. The solubility of most solid solutes increases with increasing temperature.
13. The solubility of gases in liquids generally decreases with increasing temperature.
14. Stirring helps dissolve solute faster by bringing fresh solvent into contact with undissolved solute.
15. Crushing a solid solute increases its surface area, allowing it to dissolve faster.
16. Pressure has little effect on the solubility of solids and liquids but significantly increases the solubility of gases in liquids.
17. Solution A is most likely to conduct electricity if the solute is an ionic compound.
18. Solution B may conduct electricity if the dispersed particles are ionic, but conductivity is usually lower than in true solutions.
19. Solution C is least likely to conduct electricity effectively due to low ion concentration and particle separation.
20. Filtration can separate undissolved particles from a suspension (Solution C).
21. Distillation can separate a dissolved solute from a solvent in a solution (Solution A).
22. Decanting can separate settled particles from a suspension (Solution C) after settling.
23. Chromatography can separate different dissolved substances based on their movement through a medium.
24. Evaporation can recover a dissolved solid from a solution (Solution A).
25. A colloid is a mixture where particles are dispersed throughout another substance but are larger than those in a solution and do not settle out.
26. A suspension is a mixture where particles are large enough to settle out over time.
27. A solution is a homogeneous mixture where one substance (solute) is dissolved in another (solvent).
28. The Tyndall effect is the scattering of light by colloidal particles, making the beam visible.
29. Colloids exhibit the Tyndall effect; solutions do not.
30. Examples: Solution – salt water; Colloid – milk; Suspension – muddy water.
Parent Tip: Review the logic above to help your child master the concept of tonicity and osmosis worksheet answers.
