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5 Written questions

5 Matching questions

  1. give a example of a solid?
  2. oxidation and reduction happen
  3. a ________ is the smallest particle of an element
  4. there are _______ naturaly occuring elements
  5. what prevents oxidation from occuring in skin are poducts
  1. a 90
  2. b atom
  3. c antioxidents
  4. d together at the same time
  5. e ice

5 Multiple choice questions

  1. an emuilsifier
  2. reduced
  3. 7
  4. w/o
  5. oxides

5 True/False questions

  1. miscible =is dissolved

          

  2. an electron has what charge?negative

          

  3. what is formed by joining 2 or more atoms together?a molecule

          

  4. acids turn litmus paperfrom blue to red

          

  5. what element makes up 4/5ths of te airno definate size and no definate shape

          

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