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  1. What is a mixture of two or more substances? - Answers

  2. What do new compounds have from the original substances

  3. A reaction in which two or more substances combine to form a …

  4. The change that takes place when two or more substances

  5. What is it called when one or more substances change into one or …

  6. When wood burns do new substances form? - Answers

  7. The change that takes place when two or more interact to form …

  8. What is a process by which the atoms of one or more substances …

  9. Do chemical reactions always make new substances? - Answers

  10. What substances react and form during oxidation? - Answers