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HESI A2 · Chemistry · Chemistry HESI A2 Practice Test

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following is not an allotrope of carbon?

A. Diamond

B. Graphite

C. Fluorine

D. Buckminsterfullerene

Correct Answer: Fluorine

Question 2 of 5

What is the correct name of AgNO₃?

A. Argent nitrous

B. Argent oxide

C. Silver nitrite

D. Silver nitrate

Correct Answer: Silver nitrate

Question 3 of 5

What is the term used when an atom gains one or more electrons?

A. Cation

B. Anion

C. Isotope

D. Electron

Correct Answer: Anion

Question 4 of 5

Which ion would you expect to dominate in water solutions of bases?

A. MgCl₂

B. 2HCl

C. H⁺

D. OH⁻

Correct Answer: OH⁻

Question 5 of 5

On what concept is Kelvin based?

A. Freezing point

B. Absolute zero

C. Boiling point

D. Evaporation point

Correct Answer: Absolute zero

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