chemical reactions

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Across
  1. 3. bond with two metals
  2. 5. AB=A+B
  3. 7. A+b=AB
  4. 8. AB+C=AC
Down
  1. 1. AB+CD= CB+AD
  2. 2. Metal and nonmental
  3. 3. first person to order elements by atomic number
  4. 4. 2 nonmetals
  5. 6. prefix for 4