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Chemical Reactions: Balancing, Types, and States

Learn about chemical reactions, balancing equations, types of reactions, and states of matter in this comprehensive guide. Discover how to prove a chemical reaction has occurred, the symbols used in reactions, and the importance of observation. Find out about the fundamental law demonstrated in balancing equations and explore various types of reactions. Understand the role of solubility in reactions and learn about single replacement and double replacement reactions. Learn about the state of matter notation and the significance of combustion reactions.

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Chemical Reactions: Balancing, Types, and States

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  1. Chemical Reactions

  2. Balancing

  3. Reaction/ No Reaction?

  4. Types of Reactions

  5. States of Matter

  6. Miscel- laneous

  7. Chemical Reactions Balancing Reaction/ No Reaction? Types of Reactions Sates of Matter Misc $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500

  8. How do you prove a chemical reaction has occurred?

  9. Lab analysis

  10. Name 5 observations that suggest a chemical reaction has occurred

  11. Change in color, odor, formation of a precipitate, release of energy, gas, light

  12. Which type of reaction always gives off energy

  13. Combustion

  14. What symbols would you use to indicate the following: a) heated to 100C b) Palladium as a catalyst c) reversible reaction d) heat needed Write ans on board.

  15. a) 100C over arrow b) Pd over arrow c) 2 opposing arrows d) heat or triangle over arrow

  16. Which 2 of the following dissolves in water? a) AlBr3 b) BiI3 c) CaCO3 d) FeBr2

  17. a) AlBr3 d) FeBr2

  18. How many molecules of oxygen are in this reaction? 4Al + 3O2 --> 2Al2O3

  19. 3

  20. What fundamental law is demonstrated in balancing equations?

  21. The Law of Conser- vation of Mass

  22. Balance this reaction: ZnS + O2 --> ZnO + SO2 (30 seconds)

  23. 2:3:2:2

  24. How many atoms are present in Sr3(PO4)2?

  25. 13

  26. Why can't you change the subscript when balancing equations?

  27. It changes the identity of the substance

  28. Name 4 elements that will replace strontium in a single replacement reaction.

  29. Li, Na, K, Rb, Ba

  30. What must appear for a double replacement reaction to occur?

  31. A precipitate, gas, or water

  32. Will this reaction occur? FeS(aq) + Ni(s) ---> Explain your answer.

  33. No, nickel is lower on the activity series than iron.

  34. Will a reaction occur between aluminum bromide and barium chloride? Use solubility chart. Explain your answer.

  35. No b/c no precipatate is formed, all products are still dissolved

  36. Where might Cesium appear in the activity series, based on it's location on the periodic table?

  37. Near rubidium; near the top

  38. Which type of reaction produces two pure elements?

  39. Decomposition

  40. Which type of reaction requires use of an activity series?

  41. Single replacement

  42. What state of matter do you write when there's an "S" on the solubility chart?

  43. (aq)

  44. What reaction always produces H2O and CO2?

  45. Combustion

  46. Which 2 types of reactions can have oxygen as a reactant?

  47. Combustion & Synthesis

  48. What is the state of a pure ionic compound at room temperature?

  49. Solid

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