Reactions of Elements

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Across
  1. 3. Reaction that absorbs free energy from its surrounding
  2. 5. A chemical equation with the same number of atoms on both sides of the arrow
  3. 7. A change in which one or more substances are converted
  4. 10. type of reaction where two reactants exchange ions to form two new compounds
  5. 13. Represents the number of units of each substances taking part in a reaction
  6. 14. Occurs when a substance reacts with oxygen to produce energy in the form of heat and light
  7. 17. A way to describe a chemical reaction using chemical formulas and other symbols
  8. 18. Occurs when one substance breaks down into two or more substances
Down
  1. 1. Reaction that proceeds with a net release of free energy
  2. 2. when an element or ion moves out of one compound and into another
  3. 4. Gain of electrons
  4. 6. A reaction that releases energy in the form of heat
  5. 8. A reaction that absorbs energy in the form of heat
  6. 9. The starting substances that react
  7. 11. The new substances produced
  8. 12. A solid that forms from a solution during a chemical equation
  9. 15. Loss of electrons
  10. 16. Two or more substances combine to form another substance