Quizlet Unit 1 C-D Science TEst

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  1. acids: Gives off Hydrogen ions when dissolved in water.
  2. Aerobic Bacteria: Need oxygen to break it down.
  3. Anaerobic Bacteria: Doesn't need oxygen to break it down.
  4. Bacterial Action: Conversion by bacteria of organic substances into simpler compounds.
  5. bases: Gives off hydroxide ions when dissolved in water.
  6. biodegradable: Can be broken down by living things.
  7. Chlorination: The addition of chlorine to a water supply to kill harmful organisms.
  8. concentration: quantity of solute dissolved in a specific quantity of solvent or solution
  9. Condensation: Conversion of a substance from a gas to a liquid or solid state.
  10. Evaporation: Change of a substance from a liquid to a gas.
  11. Filtration: Separation of solid particles from a liquid by passing the mixture through a material that retains the solid particules.
  12. Hard Water: Water containing a relatively high concentration of calcium, magnesium, or ion 3 ions.
  13. How do you find the charge for an element with only a periodic table of elements?: the first row on the left of the table is +1, the second row is +2, then you skip the big section from Sc to Hg, then the next row is +3 chage, the next row is +4, the next row is -4, next is -3, next is-2, next is -1
  14. Ion Exchange: process of purifying water, which may involve the exchange of hard-water ions for other ions such as sodium.
  15. neutral: in between an acid and a base
  16. photosynthesis: The proccess of a plant making it's own food.
  17. Regenerated: process of renewing a material; renewing used ionexchange resin by replacing hard-water ions in the resin with ions such as sodium.
  18. saturated: When the solvent has dissolved as much solute as it can retain stably at a given temperature.
  19. Sewage Treatment Plant: Where the post-cleaning of municipal water occurs at.
  20. Sludge Gas: Containing both methane and carbon dioxide. It remains agter water goes through aeration and digestion.
  21. Solubility: quantity of a substance that will dissolve in a given quantity of solvent to form a saturated solution.
  22. supersaturated: Solution containing a higher concentration of solute than a saturated solution at a given temperature.
  23. Turbidity: The cloudiness of a solution.
  24. unsaturated: When you can add more of what you are dissolving to the solvent.
  25. Water Sofener: Apparatus containing an ion-exchange resin; used to treat water by removing ions that cause water hardeness.
  26. Water Sofening: The process of removing calcium, magnesium, and ion 3 from water, results in water that readily forms a lather with soap.
  27. Water Treatment: Purification processes applied to water before it is distributed for consumption.
  28. What is the charge for Hydrogen?: +1
  29. What is the equation used to find the solution concentration?: mass of solute divided by the mass of the solution multiplied by 100 = percent concentration