9th 3rdt

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Across
  1. 2. Substances formed as a result of a chemical reaction.
  2. 6. Reaction where one element replaces another element or trade places.
  3. 8. _____ bond is the force of attraction that holds two atoms together.
  4. 10. Substances that enter into a chemical reaction.
  5. 11. Ion that form when atoms gain valence electrons.
  6. 12. Chemical bond formed when two atoms share electrons.
Down
  1. 1. Type of covalent bond where electrons are shared unequally.
  2. 3. Reaction where compounds break down into simpler products.
  3. 4. Reaction where elements combine to form a more complex substance.
  4. 5. Compound that forms when opposite charges attract.
  5. 7. Electrons that have the highest energy in an atom.
  6. 9. Atom or group of atoms that have an electric charge.
  7. 10. A chemical _____ forms new substances with new properties and have a change in energy.