500 HESI A2 Questions to Know by Test Day by Kathy A. Zahler

Author:Kathy A. Zahler
Language: eng
Format: epub
Publisher: McGraw Hill LLC
Published: 2022-05-15T00:00:00+00:00

(A) Ammonia

(B) Carbon monoxide

(C) Hydrogen peroxide

(D) Propane

355. What is the charge of an alpha ray?

(A) -1

(B) +1

(C) +2

(D) No charge

356. What is the correct name of AgNO3?

(A) Argent nitrous

(B) Argent oxide

(C) Silver nitrite

(D) Silver nitrate

357. What is the oxidation state of the chlorine atom in the compound HCl?

(A) +1

(B) -1

(C) +2

(D) -2

358. Al(NO3)3 + H2SO4 → Al2(SO4)3 + HNO3 is an example of which kind of reaction?

(A) Decomposition reaction

(B) Synthesis reaction

(C) Single replacement reaction

(D) Double replacement reaction

359. B, Si, As, Te, At, Ge, and Sb form a staircase pattern on the right side of the periodic table. How can these elements be classified?

(A) As metals

(B) As semimetals

(C) As nonmetals

(D) As ultrametals

360. If gas A has four times the molar mass of gas B, you would expect it to diffuse through a plug _____.

(A) at half the rate of gas B

(B) at twice the rate of gas B

(C) at a quarter the rate of gas B

(D) at four times the rate of gas B

361. Which element might you encounter in nature in its pure form?

(A) Au

(B) K

(C) Li

(D) B

362. If a neutral sodium atom has one electron removed, what is the result?

(A) A negatively charged Na- ion with a net charge of +1

(B) A positively charged Na+ ion with a net charge of -1

(C) A negatively charged Na- ion with a net charge of -1

(D) A positively charged Na+ ion with a net charge of +1

363. If you leave a metal rake outside and it rusts, what reaction has taken place?

(A) Double displacement

(B) Acid-base

(C) Combustion

(D) Oxidation-reduction

364. Which material would you expect to have the highest melting point?

(A) Silver

(B) Lead

(C) Iron

(D) Copper

365. How do organic reactions compare to inorganic reactions?

(A) They are slower due to the presence of covalent bonds.

(B) They are slower due to the presence of multiple ions.

(C) They are faster due to the presence of covalent bonds.

(D) They are faster due to the presence of multiple ions.

366. What is the coefficient of O2 after the following equation is balanced?

__CH4 + __O2 →__CO2 +__H2O

(A) 1

(B) 2

(C) 3

(D) 4

367. Which element would you expect to be least reactive?

(A) Li

(B) Cr

(C) Nd

(D) Xe

368. Which is a property of an ionic compound?

(A) Low melting point

(B) Poor conductivity

(C) Shared electrons

(D) Crystalline shape

369. What is the mass number of an atom with 24 protons, 24 electrons, and 30 neutrons?

(A) 24

(B) 30

(C) 48

(D) 54

370. What is the correct name of ZnSO4?

(A) Zinc sulfate

(B) Zinc sulfide

(C) Zinc sulfur

(D) Zinc oxide

371. What is the oxidation state of the oxygen atom in the compound NaOH?

(A) -2

(B) -1

(C) 0

(D) +2

372. Which of these intermolecular forces would have the lowest boiling point?

(A) Dipole–dipole interaction

(B) London dispersion force

(C) Keesom interaction

(D) Hydrogen bonding

373. Which two halogens are gases at room temperature?

(A) Iodine and chlorine

(B) Bromine and iodine

(C) Fluorine and bromine

(D) Chlorine and fluorine

374. Which process has the greatest overall effect on solubility?

(A) Straining

(B) Stirring

(C) Pressure

(D) Heating

375. Which substance would be the best conductor of electricity?

(A) Neon

(B) Silicon

(C) Silver

(D) Mercury

376. Why is salt often used on icy roads?

(A) It forms an ionic bond with water.

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