Pure Substances And Mixtures: Solutions

9 Questions  I  By Chiling
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Chemistry Quizzes & Trivia
Grade 7 Science Solutions

  
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Questions and Answers

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  • 1. 
    Everything is made of__________________________

  • 2. 
     Which of these are NOT a correct part of Particle Theory. (Check all that you think applies)
    • A. 

      Temperature changes the speed of particles

    • B. 

      Particles are ALWAYS moving

    • C. 

      Only liquids and gas particles move

    • D. 

      Particles have attraction forces

    • E. 

      There are no spaces between solid particles


  • 3. 
    What are the parts that make up a solution? (List them with one space in between)

  • 4. 
    What is another name for a homogeneous mixture?

  • 5. 
    If my hot chocolate is very weak, it is ____________________
    • A. 

      Saturated

    • B. 

      Concentrated

    • C. 

      Dilute

    • D. 

      Supersaturated


  • 6. 
     Both liquids and gases take the shape of their container, but...
    • A. 

      Gases fill the whole container, liquids do not

    • B. 

      Liquids fill the whole container, gases do not

    • C. 

      Liquids fill the whole container and gases settle on the bottom


  • 7. 
     The best way to separate salt from a mixture with water is to use...
    • A. 

      Magnetism

    • B. 

      Distillation

    • C. 

      Picking it out

    • D. 

      Floating


  • 8. 
    Increasing the temperature of a solvent...
    • A. 

      Has no effect on the solute

    • B. 

      Makes the solute dissolve faster

    • C. 

      Makes the solute dissolve slower

    • D. 

      Makes the solute stop dissolving


  • 9. 
    A solute with a large particle size will dissolve
    • A. 

      At the same rate as a smaller particle

    • B. 

      Faster than a smaller particle

    • C. 

      Slower than a smaller particle

    • D. 

      Will not dissolve


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