Home Instruction Schools
Physical Setting Chemistry
Regents Review Quiz

1) What is the electron configuration of a sulfur atom in the ground state?
a) 2-4
b) 2-6
c) 2-8-4
d) 2-8-6

2) Which compound contains ionic bonds?
a) NO
b) NO2
c) CaO
d) CO2

3) All the isotopes of a given atom have
a) the same mass number and the same atomic number
b) the same mass number but different atomic numbers
c) different mass numbers but the same atomic number
d) different mass numbers and different atomic numbers

4) What are two properties of most nonmetals?
a) high ionization energy and poor electrical conductivity
b) high ionization energy and good electrical conductivity
c) low ionization energy and poor electrical conductivity
d) low ionization energy and good electrical conductivity

5) 5 Atoms of the same element that have different numbers of neutrons are classified as
a) charged atoms
b) charged nuclei
c) isomers
d) isotopes

6) Compared to the radius of a chlorine atom, the radius of a chloride ion is
a) larger because chlorine loses an electron
b) larger because chlorine gains an electron
c) smaller because chlorine loses an electron
d) smaller because chlorine gains an electron

7) Which 5.0-milliliter sample of NH3 will take the shape of and completely fill a closed 100.0-milliliter container?
a) NH3(s)
b) NH3(l)
c) NH3(g)
d) NH3(aq)

8) The strongest forces of attraction occur between molecules of
a) HCl
b) HF
c) HBr
d) HI

9) At the same temperature and pressure, which sample contains the same number of moles of particles as 1 liter of O2(g)?
a) 1 L Ne(g)
b) 2 L N2(g)
c) 0.5 L SO2(g)
d) 1 L H2O(L)

10) Which change in the temperature of a 1-gram sample of water would cause the greatest increase in the average kinetic energy of its molecules?
a) 1 degree C to 10 degrees C
b) 10 degrees C to 1 degreeC
c) 50 degrees C to 60 degrees C
d) 60 degrees C to 50 degrees C

11) Which compound is classified as a hydrocarbon?
a) ethane
b) ethanol
c) chloroethane
d) ethanoic acid

12) What is the oxidation number of chromium in K2Cr2O7?
a) +12
b) +2
c) +3
d) +6

13) A substance that conducts an electrical current when dissolved in water is called
a) a catalyst
b) a metalloid
c) a nonelectrolyte
d) an electrolyte

14) Which product of nuclear decay has mass but no charge?
a) alpha particles
b) neutrons
c) gamma rays
d) beta positrons

15) Given the reaction: HCl(aq) + LiOH(aq) ==> HOH(?) + LiCl(aq)
the reaction is best described as:
a) neutralization
b) synthesis
c) decomposition
d) oxidation-reduction

16) The change that is undergone by an atom of an element made radioactive by bombardment with high-energy protons is called
a) natural transmutation
b) artificial transmutation
c) natural decay
d) radioactive decay

17) As ice melts at standard pressure, its temperature remains at 0 degrees C until it has completely melted. Its potential energy
a) decreases
b) increases
c) remains the same
d) none of the above

18)As a sample of the radioactive isotope 131I decays, its half-life
a) decreases
b) increases
c) remains the same
d) none of the above

19) As an atom becomes an ion, its mass number
a) decreases
b) increases
c) remains the same
d) none of the above

20) In which shell are the valence electrons of the elements in Period 2 found?
a) 1
b) 2
c) 3
d) 4

21) Which of the following Group 15 elements has the greatest metallic character?
a) nitrogen
b) phosphorus
c) antimony
d) bismuth

22) The number of neutrons in the nucleus of an atom can be determined by
a) adding the atomic
b) subtracting the atomic number from the mass number
c) adding the mass number to the atomic mass
d) subtracting the mass number from the atomic number

23) A compound has a gram formula mass of 56 grams per mole. What is the molecular formula for this compound?
a) CH2
b) C2H4
c) C3H6
d) C4H8

24) Which of the following ions has the smallest radius?
a) F-
b) Cl-
c) K+
d) Ca2+

25) According to Reference Table G, which solution is saturated at 30 degrees C ?
a) 12 grams of KClO3 in 100 grams of water
b) 12 grams of KClO3 in 200 grams of water
c) 30 grams of NaCl in 100 grams of water
d) 30 grams of NaCl in 200 grams of water

26) The gram formula mass of NH4Cl is
a) 22.4 g/mole
b) 28.0 g/mole
c) 53.5 g/mole
d) 95.5 g/mole

27) What is the molarity of a solution that contains 0.50 mole of NaOH in 0.50 liter of solution?
a) 1.0 M
b) 2.0 M
c) 0.25 M
d) 0.50 M

28) If 5.0 milliliters of a 0.20 M HCl solution is required to neutralize exactly 10 milliliters of NaOH what is the concentration of the base?
a) 0.10M
b) 0.20 M
c) 0.30 M
d) 0.40 M

29) Exactly how much time must elapse before 16 grams of potassium-42 decays, leaving 2 grams of the original isotope?
a) 8 X 12.4 hours
b) 2 X 12.4 hours
c) 3 X 12.4 hours
d) 4 X 12.4 hours

30) The process of joining many small molecules into larger molecules is called
a) neutralization
b) polymerization
c) saponification
d) substitution

Quiz script provided by
JavaScriptKit.com

Back to Home Page

Back to Regents Page

 

Quiz questions selected by Koby Stern