Welcome to this exciting Chemistry Trivia! Whether you’re a chemistry enthusiast, a student brushing up on concepts, or just someone curious about the scientific world, this post will surely pique your interest. It’s designed to test your knowledge on a wide range of chemistry topics, from basic concepts to more advanced principles. Remember, the objective is not just to answer these questions, but also to learn, explore, and have fun. So, without further ado, let’s dive into the fascinating world of chemistry. Ready, set, go!
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1. What is Avogadro’s number? Reveal Answer 6.022 x 10^23 2. What does the pH scale measure? Reveal Answer The acidity or alkalinity of a solution 3. What is the scientific term for rusting? Reveal Answer Oxidation 4. What is the main component of natural gas? Reveal Answer Methane 5. What is the chemical formula for water? Reveal Answer H2O 6. What type of chemical bond shares electrons? Reveal Answer Covalent bond 7. What type of chemical bond involves the transfer of electrons? Reveal Answer Ionic bond 8. Which term represents substances that resist changes in pH? Reveal Answer Buffer 9. What’s the name of the bond formed by the attraction between opposite charges of the hydrogen and oxygen within a water molecule? Reveal Answer Hydrogen bond 10. What chemical process combines simple molecules to create more complex ones, often with the release of energy? Reveal Answer Polymerization 11. What is the most abundant gas in Earth’s atmosphere? Reveal Answer Nitrogen 12. Which chemical substance gives vinegar its sour taste? Reveal Answer Acetic acid 13. What type of isomerism is exhibited by compounds having the same molecular formula but different spatial arrangements? Reveal Answer Stereoisomerism 14. What is the chemical term for a substance that speeds up a reaction without being consumed? Reveal Answer Catalyst 15. Which process is applied to separate a mixture of liquids with different boiling points? Reveal Answer Distillation 16. What is the term for a reaction where a molecule is split into smaller units, often by the addition of water? Reveal Answer Hydrolysis 17. What is the common name for dihydrogen monoxide? Reveal Answer Water 18. What term is used to describe a substance that cannot be broken down into simpler substances by chemical means? Reveal Answer Element 19. What is the energy change called that happens during a chemical reaction? Reveal Answer Enthalpy 20. What term describes a solid that forms from a solution during a chemical reaction? Reveal Answer Precipitate 21. What’s the scientific term for substances that initiate or accelerate chemical reactions? Reveal Answer Catalyst 22. What process is used to purify a chemical by repeatedly boiling it and condensing it back to a liquid? Reveal Answer Distillation 23. What is the scientific name for a substance that increases the concentration of hydrogen ions in a water solution? Reveal Answer Acid 24. What term describes the point in a chemical reaction at which both reactants and products exist in equal concentrations? Reveal Answer Equilibrium 25. What is the term for the minimum amount of energy required to start a chemical reaction? Reveal Answer Activation energy 26. What is the term for a solution that resists changes in pH when small amounts of an acid or base are added? Reveal Answer Buffer 27. What’s the name of a chemical reaction in which energy is absorbed from the surroundings? Reveal Answer Endothermic reaction 28. What is the term for a process in which a solid changes directly to a gas, without first becoming a liquid? Reveal Answer Sublimation 29. What is the chemical name for baking soda? Reveal Answer Sodium bicarbonate 30. What is the process called in which a gas or vapor changes directly into a solid, without first changing into a liquid? Reveal Answer Deposition 31. What is the chemical term for the process that breaks down complex molecules into simpler ones? Reveal Answer Hydrolysis 32. What is the term for a reaction in which two molecules combine to form one larger molecule with the elimination of a small molecule? Reveal Answer Condensation 33. What is the chemical name for the ‘laughing gas’ used as an anesthetic in dentistry? Reveal Answer Nitrous oxide 34. What is the process of converting sugar into alcohol called? Reveal Answer Fermentation 35. What is the general term for a reaction in which two elements or compounds combine to form a more complex substance? Reveal Answer Synthesis 36. What is the name for a reaction where one element displaces another in a compound? Reveal Answer Displacement 37. What is the term for a solution in which no more solute can be dissolved at a given temperature? Reveal Answer Saturated solution 38. What term describes the movement of particles from an area of high concentration to an area of low concentration? Reveal Answer Diffusion 39. What type of reaction occurs when an acid and base react together to produce salt and water? Reveal Answer Neutralization 40. What is the term for a substance which increases the rate of a chemical reaction, but is not consumed or changed during the reaction? Reveal Answer Catalyst 41. What is the name for the process where a liquid changes to a gas at a temperature below its boiling point? Reveal Answer Evaporation 42. What is the term for a substance that has been dissolved in a solution? Reveal Answer Solute 43. What is the term for the substance in which a solute is dissolved to form a solution? Reveal Answer Solvent 44. What is the chemical term for a substance that can accept an electron pair? Reveal Answer Lewis acid 45. What is the chemical term for a substance that can donate an electron pair? Reveal Answer Lewis base 46. What term describes a substance that can act as both an acid and a base? Reveal Answer Amphoteric 47. What is the name for the process by which plants convert carbon dioxide and water into glucose? Reveal Answer Photosynthesis 48. What is the process called by which complex organic molecules are broken down into simpler molecules by the breaking of carbon-carbon bonds? Reveal Answer Cracking 49. What term is used to describe a measure of the disorder of a system? Reveal Answer Entropy 50. What term is used for a solution that contains more solute than a saturated solution under the same conditions? Reveal Answer Supersaturated solution 51. What term is used to describe the heat energy absorbed or released in a chemical reaction? Reveal Answer Heat of reaction 52. What term is used to describe a reaction in which a single compound breaks down into two or more elements or new compounds? Reveal Answer Decomposition 53. What term describes a substance that changes color in response to changes in pH? Reveal Answer pH indicator 54. What is the chemical formula for glucose? Reveal Answer C6H12O6 55. What is the chemical formula for common table salt? Reveal Answer NaCl 56. What term describes the phenomenon where liquids rise against gravity in narrow spaces? Reveal Answer Capillarity 57. What term describes a process where a solute moves from an area of high concentration to an area of lower concentration? Reveal Answer Diffusion 58. What is the term for the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius? Reveal Answer Specific heat capacity 59. What term describes a substance’s resistance to flow? Reveal Answer Viscosity 60. What is the chemical name for the compound with the formula CH3COOH? Reveal Answer Acetic acid 61. What is the name for a reaction in which small molecules combine to form a large one, with the elimination of a small molecule such as water? Reveal Answer Condensation polymerization 62. What is the term for the energy released when an atom forms a bond with another atom? Reveal Answer Bond energy 63. What is the chemical name for the compound with the formula H2SO4? Reveal Answer Sulfuric acid 64. What is the term for a reaction in which an element reacts with a compound and takes the place of another element in that compound? Reveal Answer Displacement reaction 65. What is the term for the process in which a liquid changes into a vapor? Reveal Answer Evaporation 66. What is the chemical name for the compound with the formula NH3? Reveal Answer Ammonia 67. What term describes a substance that ionizes or dissociates into ions when it dissolves in water? Reveal Answer Electrolyte 68. What is the chemical term for the process that absorbs heat from the surroundings? Reveal Answer Endothermic process 69. What term is used to describe a substance that cannot be dissolved in a particular solvent? Reveal Answer Insoluble 70. What is the term for a substance that causes a reduction in a chemical reaction? Reveal Answer Reducing agent 71. What is the term for a substance that causes oxidation in a chemical reaction? Reveal Answer Oxidizing agent 72. What is the term for the process in which a gas changes into a solid without first becoming a liquid? Reveal Answer Deposition 73. What term is used to describe a reaction that involves the exchange of ions between two compounds? Reveal Answer Metathesis or double displacement 74. What term describes a reaction in which a molecule loses electrons? Reveal Answer Oxidation 75. What term describes a reaction in which a molecule gains electrons? Reveal Answer Reduction 76. What term describes a compound that produces hydroxide ions when dissolved in water? Reveal Answer Base 77. What is the term for a substance that can act as both a reducing agent and an oxidizing agent? Reveal Answer Redox agent 78. What term is used to describe a liquid’s resistance to flow? Reveal Answer Viscosity 79. What is the term for the process in which a substance changes from a solid to a liquid? Reveal Answer Melting 80. What term describes a solution that contains more solute than it can theoretically hold at a given temperature? Reveal Answer Supersaturated solution 81. What term is used to describe a homogeneous mixture of two or more substances? Reveal Answer Solution 82. What term is used to describe a reaction in which energy is released to the surroundings? Reveal Answer Exothermic reaction Sharing is Caring:
