Unit 7 Vocab

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Across
  1. 4. an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  2. 5. the mass of one mole of a substance
  3. 8. the energy stored in chemical bonds
  4. 9. new substances formed as a result of a chemical reaction
  5. 10. a chemical reaction that releases energy to its surroundings
  6. 11. a chemical reaction in which one element takes the place of another element in a compound
  7. 12. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
  8. 13. a chemical reaction in which two or more substances react to form a single substance
Down
  1. 1. a chemical reaction in which a compound breaks down into two or more simpler substances
  2. 2. a chemical reaction in which two compounds exchange positive ions and form new compounds
  3. 3. equation a representation of a chemical reaction in which the reactants and products are expressed as formulas
  4. 6. a chemical reaction that absorbs energy from its surroundings
  5. 7. substances that undergo change in a chemical reaction