UNIT 3_CHEMICAL REACTIONS

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Across
  1. 2. Intermolecular forces between polar molecules.
  2. 3. A reaction that absorbs energy.
  3. 4. A covalent bond in which electrons are not shared equally.
  4. 5. A reaction in which one element replaces another in a compound.
  5. 7. A strong type of dipole-dipole attraction between molecules with hydrogen bonded to a highly electronegative atom.
  6. 10. A table of the chemical elements arranged by atomic number.
  7. 11. The reactant that determines the amount of product formed.
  8. 12. The ratio of the actual yield to the theoretical yield, multiplied by 100.
  9. 13. An ion composed of two or more atoms covalently bonded.
  10. 17. The three-dimensional arrangement of atoms in a molecule.
  11. 18. The loss of electrons in a chemical reaction.
  12. 20. A number in front of a chemical formula in an equation.
  13. 21. A number written slightly below the line in a chemical formula.
  14. 22. A reaction in which two or more substances combine to form a single product.
  15. 23. A substance that undergoes change in a chemical reaction.
  16. 26. A chemical bond formed by the transfer of electrons from one atom to another.
  17. 31. Weak intermolecular forces due to temporary dipoles in molecules.
  18. 32. The International Union of Pure and Applied Chemistry, responsible for standardizing chemical nomenclature.
  19. 33. Two or more atoms bonded together.
  20. 34. A reactant that remains after the reaction is complete.
  21. 35. The maximum amount of product that can be produced from a given amount of reactants.
  22. 37. A reaction in which a single compound breaks down into two or more simpler substances.
  23. 39. The mass of one mole of a substance.
  24. 40. A reaction involving the transfer of electrons.
Down
  1. 1. A compound composed of two different elements.
  2. 6. A covalent bond in which electrons are shared equally.
  3. 8. reaction in which the positive ions of two compounds exchange places.
  4. 9. A diagram showing the bonding between atoms and the lone pairs of electrons in a molecule.
  5. 14. Describes a chemical equation with the same number of each type of atom on both sides.
  6. 15. A symbolic representation of a chemical reaction.
  7. 16. The gain of electrons in a chemical reaction.
  8. 19. The systematic method of naming chemical compounds.
  9. 24. A chemical bond formed by the sharing of electron pairs between atoms.
  10. 25. The calculation of reactants and products in chemical reactions.
  11. 27. The measured amount of a product obtained from a reaction.
  12. 28. A model used to predict the geometry of molecules based on the repulsion between electron pairs.
  13. 29. The smallest unit of an element.
  14. 30. The number of atoms or molecules in one mole of a substance.
  15. 36. The amount of product obtained in a chemical reaction.
  16. 38. A substance formed as a result of a chemical reaction.