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Mixtures and Solutions - Quiz
Contributed by: Foster
  • 1. What is a mixture?
A) A pure substance composed of only one type of atom
B) A combination of two or more substances that are physically combined
C) A single substance with uniform composition
D) A chemical bond between two substances
  • 2. What is a colloid?
A) A type of compound with strong chemical bonds
B) A solution with maximum solubility
C) A pure substance that cannot be separated by physical means
D) A mixture in which one substance is dispersed evenly throughout another substance
  • 3. How can you separate a mixture of saltwater into salt and water?
A) By freezing the mixture to extract the salt
B) By evaporation, leaving behind salt crystals
C) By filtration to remove the salt
D) By adding more water to dilute the salt
  • 4. What is the term for a solution in which no more solute can be dissolved?
A) Unsaturated solution
B) Dilute solution
C) Saturated solution
D) Supersaturated solution
  • 5. What is the term for a mixture that has visible particles that settle over time?
A) Alloy
B) Buffer solution
C) Suspension
D) Emulsion
  • 6. How does adding more solute to a solvent affect the freezing point of a solution?
A) It causes the solution to solidify instantly
B) It has no effect on the freezing point
C) It lowers the freezing point of the solution
D) It raises the freezing point of the solution
  • 7. Which method can be used to separate a mixture of sand and water?
A) Evaporation
B) Chromatography
C) Filtration
D) Decantation
  • 8. When a mixture is heated to separate its components, what is this process called?
A) Decantation
B) Chromatography
C) Distillation
D) Filtration
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