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Solutions quiz

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  • What is a solution in chemistry?
    A solution is a homogeneous mixture made up of two or more components that form a uniform composition.
  • What is the solute in a solution?
    The solute is the smaller portion of a solution that is dissolved within the solvent.
  • What is the solvent in a solution?
    The solvent is the part of the solution present in the larger amount and is capable of dissolving other substances.
  • How is concentration defined in the context of solutions?
    Concentration is a measurement of the amount of solute present in a given solution.
  • What does it mean for a mixture to have a uniform composition?
    A uniform composition means everything is mixed perfectly together and you cannot distinguish different parts.
  • What is a suspension?
    A suspension is a heterogeneous mixture with large solute particles that can float and eventually settle out due to gravity.
  • How large are the particles in a suspension?
    Particles in a suspension are larger than 500 nanometers.
  • What is a colloid?
    A colloid is a homogeneous mixture with intermediate-sized particles that remain suspended and do not settle.
  • How large are the particles in a colloid?
    Particles in a colloid are less than 500 nanometers.
  • Why do particles in a suspension eventually settle?
    Because the particles are large, they are affected by gravity and can settle at the top or bottom depending on density.
  • Do colloid particles settle out of the mixture?
    No, colloid particles do not settle; they remain suspended in the solvent.
  • Give an example of a suspension.
    Italian salad dressing is an example of a suspension, where oil, vinegar, herbs, and spices can be seen floating.
  • Give an example of a colloid.
    Milk is an example of a colloid, with fat and proteins like casein suspended throughout the liquid.
  • What is the main difference between a solution and a colloid?
    In a solution, the solute particles are completely dissolved and not visible, while in a colloid, intermediate-sized particles remain suspended.
  • What is the main difference between a suspension and a colloid?
    Suspensions have larger particles that settle out, while colloids have smaller particles that stay suspended and do not settle.