HESI A2 CHEMISTRY QUESTIONS EXAM QUESTIONS

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HESI A2 CHEMISTRY QUESTIONS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -67 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: reactant consumed by reaction

Answer:

limiting reactant

Question 2: what will 1 L of a 1 molar solution of any element contain?

Answer:

atomic mass in grams

Question 3: van der Waal force

Answer:

weak forces of attraction between two molecules

Question 4: Correct formula for magnesium chloride

Answer:

MgCl2

Question 5: union of who amino acids using a peptide bond

Answer:

dipeptide

Question 6: name a benefit for water to make hydrogen bonds

Answer:

high specific heat

Question 7: what are the rows called in the periodic table

Answer:

periods

Question 8: individual who weight 125 lbs is how much in kg?

Answer:

56.8 kg

Question 9: Catalyst substance accelerates a reaction by...

Answer:

finding an alternate pathway for a reaction that requires less energy

Question 10: describe reduction of a redox reaction

Answer:

gain of electrons

Question 11: What are all metric measurements composed of?

Answer:

metric prefix and a basic unit of measurement

Question 12: What isn't involved in H bonds?

Answer:

Carbon

Question 13: chemical bonding is the bonding of ...

Answer:

atom to another atom

Question 14: atomic number

Answer:

number of protons

Question 15: amino acids are building blocks for...

Answer:

proteins

Question 16: how can you boil water at room temp?

Answer:

lower pressure

Question 17: how many neutrons does carbon 14 have?

Answer:

8

Question 18: percent concentration is expressed...

Answer:

parts per 100 parts

Question 19: what are acids

Answer:

hydrogen donors

Question 20: strongest type of chemical bond?

Answer:

covalent

Question 21: chemical reaction along catabolic pathways increase in...

Answer:

entropy Question 22: iodine and carbon dioxide undergo sublimation at room temperature and atmospheric pressure. What is this process?

Answer:

changing from solid to gas

Question 23: describe DNA

Answer:

consists of two strands of deoxyribose sugar phosphate chain

Question 24: how many orbitals are in the d subshell

Answer:

5

Question 25: mass of 1 mol O

Answer:

16g

Question 26: correctly write Iodine with atomic mass of 131

Answer:

131^I 131 is placed in the upper left side of I (Iodine)

Question 27: Weakest intermolecular force

Answer:

dispersion

Question 28: mass of 7.35 mols of H2O

Answer:

132g