Physical Science

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Across
  1. 3. in a solution, the dissolving material or the material in greater abundance
  2. 6. the actual amount of solute dissolved in a given amount of solution
  3. 9. a ____ reaction is a chemical reaction that releases more thermal energy than it absorbs, gives off heat.
  4. 10. an ionic compound formed by a combination of cations and anions
  5. 12. a _____ reaction is a chemical reaction in which a single reactant breaks down into two or more products
  6. 14. a substance that is formed during a chemical reaction
  7. 17. a heterogenous mixture of a fluid and large particles that will settle out over time
  8. 21. a double-replacement reaction between an acid and a base that produces a salt and a water.
  9. 23. a solution that contains more than the maximum amount of a solute that it can normally hold at a given temperature
  10. 26. a solution that contains less than the maximum amount of solute that it could hold at a given temperature
  11. 28. a ____ solution is a water-based solution
  12. 30. the physical separation of the ions in a solid ionic compound by the action of a solvent
Down
  1. 1. a substance that helps a reaction happen faster but is not used up in the reaction
  2. 2. a substance that slows the rate of a reaction by reducing the effectiveness of catalysts.
  3. 4. a mixture with a uniform appearance throughout
  4. 5. an exothermic chemical reaction in which a fuel reacts with oxygen
  5. 7. in a solution, the dissolved material or the material in lesser abundance
  6. 8. a loss of electrons in a chemical reaction
  7. 11. a weak acid or base in solution that resists changes in pH when a moderate amount of either an acid or base is added.
  8. 13. a unitless number between 0 and 14 that tells how acidic or basic a substance is
  9. 15. H3O+
  10. 16. a substance that enters into a chemical reaction
  11. 18. a solution that contains the maximum amount of solute that it can hold at a given temperature.
  12. 19. a heterogenous mixture in which the dispersed particles will not settle out.
  13. 20. OH-
  14. 22. a substance that produces hydroxide ions in an aqueous solution
  15. 23. a ____ reaction is a chemical reaction in which two or more reactants combine into a single, more complex product.
  16. 24. a ____ reaction is a chemical reaction that absorbs more thermal energy than it releases, makes things cold.
  17. 25. a chemical ______ is the process that rearranges the atoms in one or more substances into one or more new substances
  18. 27. a substance that produces hydrogen ions in an aqueous solution
  19. 29. a _____-replacement reaction is a chemical reaction in which two compounds swap cations or anions with each other.