HESI A2 Chemistry version 1 & Version 2

  1. What is the oxidation number of any simple ion?
    +1 or -1 depending on the charge of the ion
  2. What is the temperature for freezing point of water in Celsius?
    0 degrees Celsius (32°F for Fahrenheit)
  3. What is the conversion of Celsius to Fahrenheit?
    0°C = 32°F
  4. What is the freezing point of sea water in Fahrenheit?
    0°F
  5. How many amino acids are in a dipeptide?
    2
  6. If Oxygen is in a compound, what would its oxidation number be?
    -2
  7. Which of the following pH values would lemon juice likely have?
    2 because the lower the pH value, the more acidic
  8. What is a pentose?
    A 5 carbon sugar (Pent = 5) (ose = sugar)
  9. If a Hydrogen is in a compound, what would its oxidation number be? +1

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