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Science mixures and solutions

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  • Which one of the following would you use to separate sand from iron filings?
    magnet
  • two or more materials stirred together
    mixture
  • What would be sugar be in a pitcher of Kool Aid
    solute
  • If a need to separate a mixture of sand, salt and iron, what are the steps I should follow? 4 steps
    1. Use a magnet 2. Pour water in the mixture and stir 3. Pour the mixture through the filter paper 4. Evaporate the water
  • Tell what a,solution, solute, solvent and mixture 1. Trail mix . 3. Water 2. Lemonade 4. sugar
    1. mixture 2. solution 3. solvent 4. solute
  • The part of a solution that does the dissolving (usually water)
    solvent
  • If volume of water is 67mL, its mass is _________.
    67 grams
  • Knowing the particle size of a material in a mixture helps you know......
    which tools to use to separate them
  • Particles move but are relatively close. Shape is like container. Definite volume. Flows. Particles move freely
    properties of a liquid
  • Close, tightly packed particles. Definite shape and volume. Does not flow. Particles vibrate in place.
    properties of a solid
  • a special mixture formed whan a material dissolves in water
    solution
  • Which allows a solute to be more soluble – hot or cold water? Why?
    Hot water Helps breaks down the material; more room in the hot water for particles to dissolve
  • If 15g of salt is dissolved in 90 g of water and heated to speed up evaporation, how much salt will be left?
    15g
  • How do you know when a solution is saturated?
    No more solute will dissolve and you will see the material at the bottom of the container.
  • If a mixture is made with 25 mL of water and 25 g of solid and the solid disappears, what is the mass of the solution now?
    50 g