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 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 H SO ?
2 4
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:
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
00. Type of Alloy in which another metal is dissolved in Mercury (Hg)?
Amalgam
28. Proteins are made up of?
Amino Acids
29. Glycogen is what kind of starch?
Animal Starch
30. When a electron gains one or more electrons?
Anions
31. Basic building block of a molecule?
Atom (NOT CELL!!)
32. Atomic mass?
Average mass of a elements isotope
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
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 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 H SO ?
2 4
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:
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
00. Type of Alloy in which another metal is dissolved in Mercury (Hg)?
Amalgam
28. Proteins are made up of?
Amino Acids
29. Glycogen is what kind of starch?
Animal Starch
30. When a electron gains one or more electrons?
Anions
31. Basic building block of a molecule?
Atom (NOT CELL!!)
32. Atomic mass?
Average mass of a elements isotope
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
