CORRECT ANSWERS LATEST2022-2023
HESI CHEMISTRY V1/V2
1. If Hydrogen is in a compound, what would its oxidation number be?
+1
2. What is the oxidation number of any simple
ion? The same as 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?
5F=9C+160 (remember 5F because you have 5 fingers on a hand & 9C because cats
have 9 lives)
6. What is the oxidation number of an element
atom? 0
7. What is the freezing point of sea water in Fahrenheit?
Below 0C (pick and answer choice around -2C, actual temp depends on how much salt
is in the water)
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 (each H is +1, each O is -2. All charges have to add to 0. 2+S-8=0, so S=6)
13. How many neutrons does carbon 14 have?
8 ( mass# - atomics # = neutrons) 14 - 6 =
8
14. How many protons does Potassium have?
19 (same as the atomic number)
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
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, HESI CHEMISTRY V1V2 EDITED 2_29_WITH
CORRECT ANSWERS LATEST2022-2023
°C? 100°C
19. Boiling point of water in °F?
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