Across
- 4. A base that produces many hydroxide ions when it is dissolve in water.
- 7. The gradual wearing away of a metal due to a chemical reaction in which the metal is changed into a metallic compound.
- 8. Also known as an alkaline solution, is a solution with a pH of 7 or more.
- 14. The substance in a solution that is dissolved.
- 16. The process by which one of more substances are transformed into different chemical substances.
- 17. A chemical reaction in which energy is absorbed.
- 19. Produces a small number of hydrogen ions when dissolved in water.
- 20. The amount of energy needed to start a chemical reaction.
- 21. A homogenous mixture of two or more substances.
- 22. The reaction between an acid and a base that yields water.
- 24. A base that produces a small amount of hydroxide ions when it is dissolved in water.
- 26. a measure of the amount of solute needed to make a saturated solution using a given amount of solvent.
- 27. A substance that has molecules whose electric charges are unequally distributed, so opposite sides of the molecules have opposite charges.
- 28. A method by which a solution of a known concentration is used to determine the unknown concentration of a second solution.
- 33. A compound that releases hydroxide ions when dissolved in water.
- 34. The substances formed from a chemical reaction
- 38. A solution in which water is the solvent.
- 40. The substances present before a reaction occurs.
- 41. A substance that has molecules whose electric charges are equally distributed.
- 42. Two or more gases mixed together.
- 44. A mixture of chemicals that conducts an electric current.
- 45. The process of removing salt from the ocean to obtain fresh water for drinking, irrigation or industrial use.
- 47. The substance in a solution that is present in the largest amount and acts as the dissolving agent.
Down
- 1. A solution containing more dissolved solute than a normal saturated solution under the same condition.
- 2. A solution containing a large amount of solute.
- 3. A solution in which a solid, gas or other liquid is dissolved into a liquid solvent.
- 5. A solution containing a small amount of solute.
- 6. A substance that changes colour in the presence of an acid or a base.
- 9. The result of sulfur dioxide and nitrogen oxides reacting in the atmosphere with water and returning to Earth as rain, fog, snow, sleet or dew
- 10. The maximum solute a solvent can hold at a given temperature and pressure.
- 11. rate A measure of how rapidly a reaction takes place.
- 12. A measure of the amount of solute dissolved in a certain amount of solvent.
- 13. A description using chemical symbols and formulas to show the reactants and products in a chemical reaction.
- 15. Reactions that take place with so little activation energy it seems as though none was used.
- 18. A chemical reaction in which energy—usually in the form of heat or light—is released.
- 23. Able to burn or eat away by chemical action.
- 25. A solid that can be dissolved into water to form an aqueous solution.
- 29. a substance used to slow down or stop a chemical reaction.
- 30. A substance that increases the reaction rate without being permanently changed.
- 31. A compound that releases hydroxide ions when dissolved in water.
- 32. Is a solution with a pH less than 7.
- 35. Is an acid that produces many hydrogen ions when it is dissolved in water.
- 36. A scale that measures the acidity of a solution.
- 37. A solid solution made of two or more metals or of a metal and nonmetal.
- 39. A solution containing less solute than a saturated solution.
- 43. The amount of salt in ocean water.
- 46. A compound formed from the positive ions of a base and the negative ions of an acid.