Reactions and Equations

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Across
  1. 5. New substances that are produced as a result of a chemical reaction.
  2. 7. Reaction in which electron is gained.
  3. 9. Occurs when one substance breaks down to two or more substances
  4. 11. amount of substance that contains 6.02 x 10 23 particles of that substance
  5. 12. Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction
  6. 13. Two or more substances combine to form a new substance.
  7. 14. of Conservation of matter Mass (matter) can neither be created nor destroyed.
  8. 15. a way to describe chemical reaction using chemical formulas and other symbols.
  9. 16. reaction Two ionic compounds make two new ionic compounds by means of ion exchange.
Down
  1. 1. A reaction that produces heat (Ex. Burning) and a product; usually carbon dioxide or carbon monoxide.
  2. 2. mass The Mass of one mole of a substance in grams of a substance
  3. 3. # written to the left of a formula in an equation representing # of units of each substances taking part in the chemical reaction.
  4. 4. reaction Reaction in which electron is lost
  5. 6. reaction A chemical reaction that consists of a compound and an elements. In this a metal replaces a metal and a nonmetal replaces nonmetal atom
  6. 8. Starting substances that react during a chemical reaction
  7. 10. reaction A reaction in which heat energy is released
  8. 17. reaction A reaction in which heat energy is absorbed.