Unit 3

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Across
  1. 2. number(s) used to balance an equation
  2. 4. absorbs energy in the form of heat
  3. 7. A chemical equation with the exact same number of atoms on both sides
  4. 9. a substance that undergoes change
  5. 11. AB to A+B
  6. 14. the number of elements and/or compounds reacting is a good indicator
  7. 16. a positive ion is exchange with another positive ion
  8. 18. a conversion factor from the coefficients
  9. 20. energy is in the form of heat or light
  10. 21. Something produced by a chemical reaction
  11. 22. a solid that dissolves in water so little that the naked eye cannot see it dissolving
Down
  1. 1. a solid that forms and settles out of a liquid mixture
  2. 3. releases energy in the form of heat
  3. 5. the atoms of one element replace the atoms of another element in a compound
  4. 6. H, N, O, F, Cl, Br, I
  5. 8. a solid that dissolves in water
  6. 10. mass cannot be created nor destroyed
  7. 12. the bond held to maturity
  8. 13. solid, liquid, gas, plasma
  9. 15. Substances change
  10. 17. Fl, Cl, Br, I
  11. 19. A+B to AB