Science review chapter 13

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Science review chapter 13
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2014-10-15 18:07:18
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  1. another name for chemical change.
    chemical reactants
  2. a substance that dissolves one or more substance to form a solution.
    solvent
  3. a substance that is dissolved by another substance to form a solution.
    solute
  4. a mixture of substances that are blended so completely that the mixture looks the same everywhere.
    solution
  5. a substance such as litmus paper whose color changes when it is mixed with a acid or a base.
    indicator
  6. a substance that taste sour and turns blue litmus paper red.
    acid
  7. a substance that taste bitter and turns red litmus paper blue.
    base
  8. a physical combination of two or more substances that are blended together without forming a new substance.
    mixture
  9. the ability of a substance to be dissolved by another substance.
    solubility
  10. a change of matter that occurs when a atom is linked together in a new way, creating a new substance different from the original substance.
    chemical change
  11. a change of matter and size, shape, or state without without any change in identity.
    physical change
  12. 1  example: 2H2 +O2= 2H2O
    What are reactants in this formula?
    reactant + reactant = product
  13. 2. what formed?
    a new substance
  14. 3. give a example of a chemical change every day?
    burning toast
  15. 1. example a substance has a rating on a of 5.6 on a ph scale is it a acid or a base?
    acid
  16. 2. 9.5
    base
  17. 3. 7.0
    neutral
  18. three things that you learned in chapter 13?
    chemical changes like vinegar and baking soda mixed together, I learned about reactant + reactant = product, that mixtures can separated by a filter
  19. what are the signs that a chemical change has accrued
    color, light gas giving off, and heat

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