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Newest Chemistry Questions

1. What is flame
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2. Explain the Zone Refining Process.
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   2. asked by Davepee
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3. What characteristic do tantalum and tin have in common?(1 point)Responses mined in the United States and Canada mined in the
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   2. asked by What is the point where rivers change from broad,
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4. Which best explains why lithium should be extracted from recycled lithium-ion batteries?(1 point) Responses Lithium is a limited
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   2. asked by Skyler Goodman
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5. What characteristic do tantalum and tin have in common?mined in the United States and Canada used infrequently in modern
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   2. asked by Unknown
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6. Which of the following are methods used for water purification? Select the two correct answers.(1 point)Responses boiling
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7. BackgroundDye is everywhere. Take a look around the room and try to find an item that doesn't have dye in it. The carpet on the
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   2. asked by hi
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8. Give the source of heavy metal and provide Citation with references
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9. Discuss why distillation is important in the petrol industry? answer in short short sentence
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   2. asked by Lwazi
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10. What is the name of the chemical mixture which produces gases that force the projectile out of the barrel?A) The case or
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    2. asked by Jazmine
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11. A chemical called polypropylene is used in most common plastic products, such as bottles, containers, furniture, automobile
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12. A chemical called polypropylene is used in most common plastic products, such as bottles, containers, furniture, automobile
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13. Drag each item to indicate pros and cons of using the reverse osmosis method to fiber water. Answers
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    2. asked by Angel
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14. Aluminum is produced from bauxite ore and can be used for many things. Which option describes a common production use of
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    2. asked by Connections Student
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15. There are several ways to optimize metal extraction. Which way also minimizes environmental impact?* 1 point crushing only the
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16. Before the 20th century, chemists and engineers focused mostly on meeting human needs. During the 20th century, chemical
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17. Based on the context of the passage the reader can tell that polyurethane is what
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18. HPE 7B-UEL
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19. Drag and drop the words into the correct locationCompared to the process of extracting lithium from mineral deposits, the
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20. Why have most companies started to extract lithium from brine water rather than mineral ore?(1 point) Responses The quality of
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    2. asked by Zander Gorde
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21. vWhy have most companies started to extract lithium from brine water rather than mineral ore?(1 point) Responses The process is
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22. Why are metals sometimes added to gold?to make it softer and more malleable to improve the value of gold to raise its melting
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    2. asked by e
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23. Parts of a knapsack for liquid chemicals
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    2. asked by Sinachi
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24. What are the two requirements for water used for cleaning?
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25. Plastics are made from (Act 13)A. Hydrogen and carbon compounds B. Sand,soda ash and limestone C. Bauxite D. None of the above
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26. What are monomers and polymers?A Types of cells B Building blocks of life Types of chemical reactions D Units of energy
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27. What is a polymer?A A single unit molecule B A large molecule made up of repeating monomers C A type of monosaccharide D A basic
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28. What is the reason for activated carbon during crystallization ? Why is recommended to use little and a lot during this process
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29. Which ingredients are needed to transform NADP+ to NADPH?two electrons and a hydrogen ion an electron and a hydrogen ion an
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30. Is bentonite is emulsifying agents
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    2. asked by Infinite
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31. Write the structural formulas for the followinga) 2-methylpentane.
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32. list AALL EMULSIFYING AGENT
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33. An alloy is a mixture of metals. Suppose that certain alloy is made by mixing 300 grams of an alloy that contains 72% copper
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34. There are many ways to make a battery out of household objects. Using basic metals and a potato, anyone can do it. First, find
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    2. asked by fellow person of Texas connections academy
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35. Robust bonding
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    2. asked by Infinite
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36. Looking for research in Analytical Chemistry.?
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37. What is standard solution
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38. The size of a hydrogen atom is about 1.2×10−10 m across. The size of an oxygen atom is 0.000000000152 m across. What is the
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    2. asked by ANSWER CORRECTLY
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39. What is the electron configuration of Molybdenum (Mo) using the noble gas shortcut?
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40. Concentrated cinnamon oil bp 88
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    2. asked by Infinite
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41. Which item is made from a basic ingredient?a) Soap b) Tea c) Wine d) Vinegar
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42. Which of the following are methods used for water purification? Select the two correct answers. (1 point)• smelting •
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43. How do you determine the electrical potential of a half reaction
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44. In a zinc carbon cell what is the cathode
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45. Is Zinc carbon an example of a voltaic cell
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46. Zinc carbon cell is an example of
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47. What is analytical Chemistry.?
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48. Tcg-ctt-ccc amino acids
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49. The density is then increased by isobaric cooling for recycling. Operation of supercritical fluid extraction system is
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50. 1)Explain how painting prevents iron from rusting2)state two reasons for electroplating
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51. NASA is planning on sending a rocket to space! They have discovered a chemical reaction that will provide thrust forthe engine
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52. In the process of fractional distillation, a mixture of hydrocarbons is separted into fractions according to their
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53. What are dessicants
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    2. asked by kesh sport nation
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54. What are essential elements
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    2. asked by Livia
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55. Define essential elements
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    2. asked by Mirriam Mwanza
    3. 42 views
56. Write laboratory report in the following topic:1.Title 1: The determination of ash analysis. Within introduction, objective,
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    2. asked by Abrish
    3. 69 views
57. What was Silicon Valley named after?(1 point) Responses elements studied in chemistry elements studied in chemistry gel used in
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58. In a model for ethanol, how many dark gray spears would they be?
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59. What is a lead?
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60. Two Pieces: Luminescence & Smoke AlarmsLothrop Craddock & CPSC.gov Luminescence, by Lothrop Craddock 1 Most children are
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61. so the following is true about layer 4 all solid
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    2. asked by Hummingbird
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62. How does mercury differ from other metals?(1 point)It is not solid under normal conditions. It is not lustrous. It does not
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63. Out of chlorine, ethylene ,helium ,hydrogen and nitrogen which one of those gases would flow more readily along the ground if
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64. What does the steric number represent about a molecule?
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65. how did the study of the atom contribute to our understanding of the periodic table of the elements?A ) experiments that
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66. A solution is a type of what
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67. In order to prevent an iron object from rusting, the object is often connected to another metal that can offer cathodic
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68. If a student were to build a voltaic cell using solid zinc and hydrochloric acid, which of the following equipment would also be
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69. If a current of 0.850A is applied electrochemical cell above 60 min then what mass of Cu
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70. 13 of 1513 of 15 Items02:47:05 Feature Two Pieces: Luminescence & Smoke Alarms Lothrop Craddock & CPSC.gov Luminescence, by
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    2. asked by hello mate
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71. A technician wants to electroplate 5.8g of gold onto a ring by immersing it in a solution of AuCl3(aq) and using a power source
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72. What distinguishes voltaic cells from electrolytic cell?
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73. In order to prevent an iron object from rusting, the object is often connected to another metal that can offer cathodic
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74. . Hence dusting powders should be passed through sieve no 80 to obtained fined powders.
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    2. asked by Those who want to be...
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75. What is the proper electrode reactant in a dry cell of zinc-nickel?
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76. The golem in the images melting in the persons. Hand changes will occur in microscopic level?1. The gallium atoms will gain
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77. how to create ions in water
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78. how to create bubbles in water
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79. The first application of an electrolytic cell wasQuestion 3 options: to electroplate metals to reduce metal ions in molten salts
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    2. asked by 🤖 Bot GPT 3.5
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80. is toasting bread a chemical or physical propertyis slicing bread a chemical or physical property is rusting tin a chemical or
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81. How is plastic made?(1 point) Responses Oil and natural gas are broken down from long chains into the smaller compounds we call
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    2. asked by zeo
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82. Use the periodic table to predict which element has the most metallic character.Responses A siliconsilicon B sodiumsodium C
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83. Why is creating a model important to understanding substances?
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    2. asked by annoymous
    3. 45 views
84. Briefly explain functional crystallization
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    2. asked by Oluwademilade
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85. Briefly explain functional crystallization
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    2. asked by Oluwademilade
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86. . Which has greater heat capacity—iron, tin, or bismuth? Why do you say this?
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87. Describe where metals come from and give one example of how metals are used based on their physical properties
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    2. asked by Jozikee
    3. 84 views
88. Chem tech makes paper cones used to filter liquids in the lab experiments v to make the paper cones the company starts with the
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    2. 198 views
89. What is MSDS
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    2. asked by Kelvin
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90. What is dilution and its types providing examples to each type
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    2. asked by Kelvin
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91. Does C2- exist and is it stable or unstable?
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    2. asked by Nadia
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92. Why is the combustion of hydrocarbons important for modern society?(1 point)ResponsesIt releases light that is used for seeing
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    2. asked by school
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93. laboratory chemistry scientists might be asked sources of radiation then what other questions may be asked in written interview
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    2. asked by Kelvin
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94. Give details procedures to prepare stock solution
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    2. asked by Kelvin
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95. Polymer8s
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96. Dear guys, kindly help me,outline 5 common methods which can be used to determine density or specific gravity of liquid
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    2. asked by Kelvin
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97. What will be the remaining mass of cobalt – 60 after undergoing three half life cycles?180 g 2.50 g 30 g 1.25 g
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98. Adrian's lawn mower runs on a fuel combination of oil and gasoline. The table shows the amount of of oil, I, Adrian mixed with
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99. What is an element?
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    2. asked by Numy
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100. What method can be used to establish sodium concentration in corn leaves
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     2. asked by Jah Jah
     3. 51 views