chemistry 3

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Across
  1. 2. Reaction Process where substances are transformed into different substances.
  2. 3. (Pt) Precious metal used in jewelry and catalysts.
  3. 6. (Li) Light metal used in batteries.
  4. 8. (F) Highly reactive halogen, used in toothpaste.
  5. 10. (B) Metalloid element used in glass and detergents.
Down
  1. 1. (U) Radioactive element used as fuel in nuclear reactors.
  2. 4. (I) Essential element for thyroid function.
  3. 5. Substance that speeds up a chemical reaction without being consumed.
  4. 7. (Ar) Noble gas used in light bulbs and welding.
  5. 9. (Ne) Noble gas used in neon signs.