HESI A2 CHEMISTRY V1/V2 EXAM 2023/2024 QUESTIONS
AND ANSWERS ALREADY GRADED A+
1. If a Hydrogen is in a compound, what would its oxidation 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
, HESI A2 CHEMISTRY V1/V2 EXAM 2023/2024 QUESTIONS
AND ANSWERS ALREADY GRADED A+
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:
• pH less than 7.0
AND ANSWERS ALREADY GRADED A+
1. If a Hydrogen is in a compound, what would its oxidation 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
, HESI A2 CHEMISTRY V1/V2 EXAM 2023/2024 QUESTIONS
AND ANSWERS ALREADY GRADED A+
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:
• pH less than 7.0
