1 / 47

Lakeland Chemical Reactions Review

Lakeland Chemical Reactions Review. Click on a question to begin. Question 1. Try Again. Try to balance the O atoms to get the correct coefficient . Try Again. Correct!. The balanced equation is: Fe 2 O 3 + 3CO  2Fe + 3CO 2. Next Question. Question 2. Try Again.

leola
Download Presentation

Lakeland Chemical Reactions Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lakeland Chemical Reactions Review

  2. Click on a question to begin

  3. Question 1

  4. Try Again • Try to balance the O atoms to get the correct coefficient Try Again

  5. Correct! • The balanced equation is: Fe2O3 + 3CO  2Fe + 3CO2 Next Question

  6. Question 2

  7. Try Again • Use the Activity Series for Metals on your periodic table to decide which metal is the most active Try Again

  8. Correct! • Potassium is the most active metal on the activity series, so it will most readily replace hydrogen in HCl Next Question

  9. Question 3

  10. Try Again • LEO says GER. Oxidation state is another name for charge Try Again

  11. Correct! • As a substance loses electrons its oxidation state becomes more positive Next Question

  12. Question 4

  13. Try Again • You are looking for the charge of chlorine. Use the charge of Na and O to solve for the charge of chlorine. Try Again

  14. Correct! • In NaClO4 chlorine must have a charge of 7+ Next Question

  15. Question 5

  16. Try Again • A double replacement is two compounds reacting to form two new compounds Try Again

  17. Correct! • LiOH + HCl LiCl + H2O is two compounds reacting to form two new compounds Next Question

  18. Question 6

  19. Try Again • As the temperature decreases molecules slow down Try Again

  20. Correct! • As temperature decreases molecules slow down and therefore do not collide as often Next Question

  21. Question 7

  22. Try Again • Compare the charge of copper when it is by itself as a reactant and a cation in Cu(NO3)2 as a product Try Again

  23. Correct! • Copper has a charge of 0 as a reactant and a charge of +2 as a product. An increase in charge occurs as electrons are lost which is oxidation. Next Question

  24. Question 8

  25. Try Again • Temperature, surface area and concentration all change the speed of reaction by changing the amount of collisions Try Again

  26. Correct! • A catalyst reduces the amount of activation energy needed to start a reaction Next Question

  27. Question 9

  28. Try Again • Reduction is a gain of electrons. Make sure that both charge and number of atoms are balanced. Try Again

  29. Correct! • Na+ + e- Na shows both a gain of electrons and is balanced with charge and number of atoms Next Question

  30. Question 10

  31. Try Again • Use the charges of the other atoms to determine the charge of P in each compound Try Again

  32. Correct! • In KH2PO3 K and H have a charge of +1 and O has a charge of -2. To end up with a balanced compound, P must have a charge of +3 Next Question

  33. Question 11

  34. Try Again • Make sure that you have equal number of both N and O Try Again

  35. Correct! • The balanced equation is 2N2 + 5O2 2N2O5 Next Question

  36. Question 12

  37. Try Again • A hydrocarbon and oxygen reacting is a combustion reaction. Try Again

  38. Correct! • A hydrocarbon and oxygen will always react to form water and carbon dioxide (CO2) Next Question

  39. Question 13

  40. Try Again • Nitrogen is a diatomic element. Remember to use the charges for the ions in order to put lithium and nitrogen together. Try Again

  41. Correct! • Lithium (Li) and nitrogen (N2) produce lithium nitride (Li3N) according to the equation 6 Li + N2 2 Li3N Next Question

  42. Question 14

  43. Try Again • Zinc is a metal so it should replace the cation in HClsince this is a single replacement reaction. Try Again

  44. Correct! • Zinc replaces Hydrogen according to the equation: Zn + 2HCl  ZnCl2 + H2 Next Question

  45. Question 15

  46. Try Again • Double replacements follow the pattern: AB + CD  AD + CB Try Again

  47. Correct! • The balanced equation is: CuCl2 + 2NaOH  2 NaCl + Cu(OH)2 Next Question

More Related