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HESI A2 · Chemistry · Chemistry Hesi A2

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

What does a blood sample with a pH of 3 indicate?

A. It is strongly acidic.

B. It is strongly basic.

C. It is weakly acidic.

D. It is weakly basic.

Correct Answer: It is strongly acidic.

Question 2 of 5

Which of these intermolecular forces might represent attraction between atoms of a noble gas?

A. Dipole-dipole interaction

B. London dispersion force

C. Keesom interaction

D. Hydrogen bonding

Correct Answer: London dispersion force

Question 3 of 5

What is the correct name of MgO?

A. Manganese oxide

B. Magnesium oxide

C. Magnesium oxate

D. Magnesium hydroxide

Correct Answer: Magnesium oxide

Question 4 of 5

Which substance causes a drop to rapidly turn litmus dye from blue to red?

A. Milk

B. Sea water

C. Ammonia

D. Lemon juice

Correct Answer: Lemon juice

Question 5 of 5

Which substance shows a decrease in solubility in water with an increase in temperature?

A. NaCl

B. O

C. KI

D. CaCl

Correct Answer: KI

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