HESI A2, V1 - CHEMISTRY EXAM QUESTIONS

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HESI A2, V1 (2019)- CHEMISTRY EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -16 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: B. A 5-carbon sugar

Answer:

How many amino acids are essential for human life?

• 20

• 22

• As many as 585

• Amino acids are not essential for life.

Question 2: B. Glucose from proteins and fats

Answer:

The 3 in the power of 10^3 is called the:

• Coefficient

• Significand

• Subscript

• Exponent

Question 3: What would be the oxidation state of the sulfur atom is sulfuric acid, H(2)SO(4)?

• +4
• +5
• +6
• +8

Answer:

• +6

Question 4: False

Answer:

How many amino acids are in a dipeptide?

• 3

• An even number

• An odd number

• 2

Question 5: Acids are:

• Proton acceptors
• Proton donors
• Electron acceptors
• Electron donors

Answer:

• Proton donors

Question 6: How many neutrons does carbon 14 (^14C) have?

• 6
• 7

• 8
• 9.

Answer:

• 8

*Carbon usually has 6 protons. 14-6= 8

Question 7: D. 2

*Di=2

Answer:

Glycogen is:

• A plant starch

• A disaccharide

• An animal starch

• Not a starch or a disaccharide

Question 8: C. An animal starch

Answer:

Gluconeogenesis is a process that produces:

• Energy and ATP

• Glucose from proteins and fats

• DNA and RNA

• Fat from glucose and proteins

Question 9: What is the strongest type of chemical bond?

• Covalent
• Hydrogen
• Ionic
• Dipole interactions

Answer:

• Covalent

Question 10: D. Exponent

Answer:

A pentose is:

• Pentateuch

• A 5-carbon sugar

• One of the bases of the base pairs in DNA and RNA

• Found in DNA but not RNA

Question 11: See #9 in HESI Book

Answer:

What is the correct name for MgSO(4)?

• Magnesium sulfate

• Manganese

• Magnesium sugar

• Manganese silicate

Question 12: An individual who weights 125 lb weighs how much in kilograms?

• 56.8 kg
• 2750 kg
• 68.5 kg
• 100 kg

Answer:

• 56.8 kg

125 / 2.205 = 56.8