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- 1. Open Ended405000
- 2. Open Ended0.0098
- 3. Open Ended39.999999
- 4. Open Ended13.00
- 5. Open Ended80000089
- 6. Open Ended55430.00
- 7. Open Ended0.000033
- 8. Open Ended620.03080
- 9. Open EndedHow do you convert a regular number into scientific notation?
- 10. Open EndedA study is being done to test the effects of habitat space on the size of fish populations. Different sized aquariums are set up with six goldfish in each one. Over a period of six months, the fish are fed the same type and amount of food. The aquariums are equally maintained and cleaned throughout the experiment. The temperature of the water is kept constant. At the end of the experiment the number of surviving fish are surveyed. What is the independent variable?
- 11. Open EndedA study is being done to test the effects of habitat space on the size of fish populations. Different sized aquariums are set up with six goldfish in each one. Over a period of six months, the fish are fed the same type and amount of food. The aquariums are equally maintained and cleaned throughout the experiment. The temperature of the water is kept constant. At the end of the experiment the number of surviving fish are surveyed. What is the dependent variable?
- 12. Open EndedA study is being done to test the effects of habitat space on the size of fish populations. Different sized aquariums are set up with six goldfish in each one. Over a period of six months, the fish are fed the same type and amount of food. The aquariums are equally maintained and cleaned throughout the experiment. The temperature of the water is kept constant. At the end of the experiment the number of surviving fish are surveyed. What are the controls?
- 13. Open EndedTo determine if the type of agar affects bacterial growth, a scientist cultures E. coli on four different types of agar. Five petri dishes are set up to collect results: One with nutrient agar and E. coli One with mannitol-salt agar and E. coli One with MacConkey agar and E. coli One with LB agar and E. coli One with nutrient agar but NO E. coli What is the independent variable?
- 14. Open EndedTo determine if the type of agar affects bacterial growth, a scientist cultures E. coli on four different types of agar. Five petri dishes are set up to collect results: One with nutrient agar and E. coli One with mannitol-salt agar and E. coli One with MacConkey agar and E. coli One with LB agar and E. coli One with nutrient agar but NO E. coli What is the dependent variable?
- 15. Open EndedTo determine if the type of agar affects bacterial growth, a scientist cultures E. coli on four different types of agar. Five petri dishes are set up to collect results: One with nutrient agar and E. coli One with mannitol-salt agar and E. coli One with MacConkey agar and E. coli One with LB agar and E. coli One with nutrient agar but NO E. coli What are the controls?
- 16. Open EndedWhat is the best method of contacting help in an emergency in your community?
- 17. Open EndedWhat should you do if you spilled a tiny amount of hydrochloric acid on your hand?
- 18. Open EndedDescribe a possible danger than can occur if you put food, soda, coffee, pencil erasers, etc. in your mouth while conducting your chemistry experiments?
- 19. Open EndedWhat information is given on a Safety Data Sheet?
- 20. Open EndedList optimum clothing, shoes, jewelry, and hair arrangement for your chemistry labs.
- 21. Open EndedList the contents from your first aid kit that you will use to treat a minor cut.
- 22. Open EndedList the contents from your first aid kit that you will use to treat a minor burn.
- 23. Open EndedMost of the chemicals included in your Introductory Chemistry Lab kit can be discarded down a drain with copious amounts of water. Describe a situation in which you would need to neutralize (pH 7) a chemical before discarding down a drain.
- 24. Open EndedWhy should one add acid to water rather than add water to acid when preparing solutions?
- 25. Open Endedif a stronger solution of sodium bicarbonate was used in beaker B, would it require more or less acetic acid to neutralize and why?
- 26. Open EndedIf a weaker solution of sodium bicarbonate was used in beaker B, would that solutionrequire more or less acetic acid to neutralize it and why?
- 27. Open EndedPb(SO4)2
- 28. Open EndedBe(HCO3)2
- 29. Open EndedMn2(SO3)3
- 30. Open EndedAl(CN)3
- 31. Open EndedMn(CIO3)2
- 32. Open EndedMg(CIO2)2
- 33. Open EndedBaSo4
- 34. Open EndedKI
- 35. Open EndedNaCl
- 36. Open EndedMgCl2
- 37. Open EndedNa3N
- 38. Open EndedCoCl2
- 39. Open EndedLithium bromide
- 40. Open EndedLead (II) oxide
- 41. Open EndedChromium (III) sulfate
- 42. Open EndedPotassium chloride
- 43. Open EndedSodium hypochlorite
- 44. Open EndedLead (II) iodide
- 45. Open EndedSodium hydroxide
- 46. Open EndedMagnesium sulfate
- 47. Open EndedChromium (III) nitrate
- 48. Open EndedBarium sulfate
- 49. Open EndedCobalt (III) chloride
- 50. Open EndedIron (III) bromide
- 51. Open EndedNO2
- 52. Open EndedCBr4
- 53. Open EndedSeS2
- 54. Open EndedN2O
- 55. Open EndedP4O10
- 56. Open EndedSO2
- 57. Open EndedCO
- 58. Open EndedSF6
- 59. Open EndedHI
- 60. Open EndedH2S
- 61. Open EndedSeO3
- 62. Open EndedNO
- 63. Open EndedNitrogen trifluoride
- 64. Open EndedHydrogen chloride
- 65. Open EndedOxygen difluoride
- 66. Open EndedDiselenium hexasulfide
- 67. Open EndedDihydrogen dioxide
- 68. Open EndedMethane
- 69. Open EndedSulfur trioxide
- 70. Open EndedHydrogen sulfide
- 71. Open EndedCarbon dioxide
- 72. Open EndedPhosphorus pentachloride
- 73. Open EndedDinitrogen tetroxide
- 74. Open EndedHydrogen Bromide
- 75. Open EndedWhy is it important to be accurate in all your measurements in this experiment?
- 76. Open EndedList the measurements you will take in this experiment.
- 77. Open EndedWhat chemical wastes are produced in this reaction?
- 78. Open EndedDiscuss how you could experimentally determine the chemical formula of a compound.
- 79. Open EndedWhat is the mass of the gluconate? Include your calculations
- 80. Open EndedDetermine the number of moles of copper in the copper gluconate using your results.
- 81. Open EndedWhat is the chemical formula of copper gluconate?
- 82. Open EndedWhat is one difference between qualitative and quantitative analysis?
- 83. Open EndedWhat three physical properties are often analyzed to identify covalent compounds?
- 84. Open EndedUse Table 1 (from the lab module) to determine which metal ion would be identified as the reactant if a reaction with ammonia produces a violet complex? Use scientific reasoning to explain your answer.
- 85. Open EndedUse the pH scale to describe an acidic solution and a basic solution. At what pH would a solution be considered neutral? Why?
- 86. Open EndedWhat ion is contained in the unknown solution? Use your results as evidence.
- 87. Open EndedImagine that the unknown solution contains aqueous ammonium sulfate, which is commonly used in fertilizer. Write a balanced equation for the precipitation of barium sulfate after mixing aqueous ammonium sulfate and barium chloride.
- 88. Open EndedPotassium carbonate is frequently used in the production of cocoa powder, and like sodium bicarbonate, is easily dissolved in water. Write the balanced reaction between potassium carbonate and water to produce carbon dioxide.
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