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HESI A2 ENTRANCE EXAM FOR  CHAMBERLAIN COLLGE OF NURSING  2023 QUESTIONS WITH ANSWERS  CHEMISTRY

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HESI A2 ENTRANCE EXAM FOR  CHAMBERLAIN COLLGE OF NURSING  2023 QUESTIONS WITH ANSWERS  CHEMISTRY HESI A2 CHEMISTRY V1/V2 FILE 1. If a Hydrogen is in a compound, what would its ox... idation number be? +1 2. What is the oxidation number of any simple ion? +1 or -1 depending on the charge of the ion 3. How many kilograms are in a pound? 0.453592 kg 4. What is the temperature for freezing point of water in Celsius? 0 degrees Celsius (32°F for Fahrenheit) 5. What is the conversion of Celsius to Fahrenheit? 0°C = 32°F 6. What is the oxidation number of an element atom? 0 7. What is the freezing point of sea water in Fahrenheit? 0°F 8. How many amino acids are in a dipeptide? 2 9. If Oxygen is in a compound, what would its oxidation number be? -2 10. Which of the following pH values would lemon juice likely have? 2 because the lower the pH value, the more acidic 11. What is a pentose? A 5 carbon sugar (Pent = 5) (ose = sugar) 12. What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4? 6 13. How many neutrons does carbon 14 have? 8 ( mass# - atomics # = neutrons) 14 - 6 = 8 14. How many protons does Potassium have? 19 15. How many amino acids are essential for human life? 20 amino acids 16. Normal body temperature in °C? 37°C 17. Normal body temperature in °F? 98.6°F 18. Boiling point of water in °C? 100°C 19. Boiling point of water in °F? 212°F 20. 0°K is equal to °C? -273°C 21. The term Amphoteric means? A substance that can act as both a base & acid 22. What is Kelvin based around? Absolute zero 23. A compound that is a Hydrogen or proton donor, corrosive to metals, causes blue litmus paper to become red and becomes less acidic when mixed with a base is? Acid 24. Mixture of 2 or more metals are? Alloys 25. Acids: 33. Atomic #: # of protons in nucleus of an atom 34. Base?  A Hydrogen or proton ACCEPTOR & has hydroxide group in the makeup of the molecule pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor 26. 3 types of radiation in nuclear chemistry? Alpha, Beta & Gamma 27. Alpha radiation: * Emission of Helium (He) ions in the nuclei * Contains 2 protons & 2 neutrons. * +2 Charge * Largest radiation particle. * Can be stopped by piece of paper [Show More]

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