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5 Written Questions

5 Matching Questions

  1. law of conservation of mass
  2. chemical property
  3. vinegar, pop, mayonaise, jello, kool-aid
  4. The mass of all materials used IN a change to start with are equal to the mass of all the materials that are created or what you end with
  5. Physical change - rocks are broken into smaller/different pieces, but they are still rocks; chemical change - substances dissolve in water and react with other substances in the soil, air, or water making new substances
  1. a Name two examples of homogeneous mixtures.
  2. b Explain how the law of conservation of mass applies to a chemical change.
  3. c Matter is neither created nor destroyed during a change, but is simply changed from one form to another form
  4. d charateristics of a substance that indicates whether it can undergo a certain chemical change
  5. e What type of change is weathering and why?

5 Multiple Choice Questions

  1. How many elements are there total?
  2. heterogeneous mixture containing a liquid in which visible particles are large enough to settle out (insoluble). Which type of mixture has large solute, so it can be filtered out?
  3. Name three clues that a chemical change has occurred.
  4. mixture in which particles are larger than those in a solution but are NOT heavy enough to settle out. Which type of mixture has solute small enough, so it can't be filtered out?
  5. unable to be dissolved

5 True/False Questions

  1. centrifugedevice that spins liquids at high speeds to separate it into parts based on densities

          

  2. elementType of pure substance that have atoms that have the same identity (one type of atom)

          

  3. sifting, magnetism, distillation, centrifuge, physical removal, filtrationName two compounds.

          

  4. solventType of pure substance that have atoms that have the same identity (one type of atom)

          

  5. massamount of particles in an object

          

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