August 2023 Chemistry Regents 11-20 Question Preview (ID: 62039)


The Questions In This Practice Exam Are Thoughtfully Crafted To Assess Your Knowledge And Skills. They Cover A Range Of Topics And Formats, Offering A Valuable Opportunity For Self-assessment And Preparation. TEACHERS: click here for quick copy question ID numbers.

Compared to the chemical and physical properties of the compound CO, the compound CO2 has
a) the same chemical properties and the same physical properties
b) the same chemical properties and different physical properties
c) different chemical properties and the same physical properties
d) different chemical properties and different physical properties

Which phrase describes the molecular polarity of and the charge distribution in an HCl molecule?
a) nonpolar with an asymmetrical charge distribution
b) nonpolar with a symmetrical charge distribution
c) polar with an asymmetrical charge distribution
d) polar with a symmetrical charge distribution

Which atom forms an ion with a radius larger than the atomic radius?
a) calcium atom
b) oxygen atom
c) lead atom
d) tin atom

Which sample can be classified as a substance?
a) air
b) argon
c) soil
d) seawater

A 1.0-gram sample of NaCl(s) is dissolved in 100. grams of water at 25°C, and another 1.0-gram sample of NaCl(s) is dissolved in 50. grams of water at 25°C. Which property of the two resulting mixtures will be different?
a) color of the components in the mixture
b) particle size of the components in the mixture
c) polarity of the components in the mixture
d) proportion by mass of the components in the mixture

Which compound has the greatest solubility in 100. grams of water at 10.°C?
a) HCl
b) NaCl
c) KCl
d) NH4Cl

According to the kinetic molecular theory, ideal gas particles
a) are separated by small distances relative to their size
b) do not transfer energy when they collide with each other
c) have attractive forces between them
d) move in random, constant, straight-line motion

A reaction is most likely to occur when the reacting particles collide with proper orientation and proper
a) charge
b) energy
c) mass
d) volume

A sample of SO2(g) and a sample of NO2(g) contain the same number of molecules when they have the same
a) mass, temperature, and volume
b) mass, temperature, and pressure
c) pressure, volume, and temperature
d) pressure, volume, and mass

Which term identifies the strong intermolecular forces found in a sample of liquid water?
a) ionic bonding
b) covalent bonding
c) hydrogen bonding
d) metallic bonding

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