Matter and the Periodic Table
Atomic Structure and Nuclear Chemistry
Bonding and Nuclear Chemistry
Gases and Thermochemistry
Solutions
100
Area and mass are _______ while solubility in water is__________: A) intensive: extensive B) extensive: intensive C) extensive: extensive D) intensive: intensive
B) extensive: intensive
100
When comparing fission (the splitting of heavy unstable nuclei into smaller nuclei and energy) and fusion (the combining of small nuclei into larger more stable nuclei), which releases the greatest amount of energy? A) fission B) fusion C) they both release the same amount D) it is not know which releases the most energy
B) fusion
100
What is the name of Pb(NO3)2? A) lead nitrate B) lead (II) nitrate C) lead (III) nitrate D) nitrate lead (II)
B) lead (II) nitrate
100
In a particular reaction the potential energy of the reactants is 2000 kJ and the potential energy of the products is 5250 kJ. Select from the following choices the correct combination of reaction type and the enthalpy involved in the reaction. A) 3250 kJ, exothermic B) -3250 kJ, endothermic C) 3250 kJ, endothermic D) -3250 kJ, exothermic
C) 3250 kJ, endothermic
100
Which of the following compounds would make the most electrolytic solution? A) a soluble ionic compound B) an insoluble ionic compound C) a polar covalent compound D) a nonpolar covalent compound
A) a soluble ionic compound
200
Density is a physical property because: A) it can only be observed by changing the substance B) it always requires a physical change in order to be observed C) it can be observed without changing the substance D) it cannot be observed
C) it can be observed without changing the substance
200
Even short term exposure to X-ray radiation has been associated with causing multiple forms of cancer while prolonged exposure to infrared light does now. Which of the following is a possible reason for this? A) X-ray radiation has greater energy than infrared radiation does B) There are particles in X-ray radiation but not in infrared radiation C) X-ray radiation has a longer wavelength that infrared radiation D) Infrared radiation has more energy than X-ray radiation
A) X-ray radiation has greater energy than infrared radiation does
200
What is the name of HClO2? A) hydrogen chlorite B) hydrogen chloric acid C) chlorous acid D) chloric acid
C) chlorous acid
200
Assuming you have equal masses of several metal samples, which will require the greatest input of energy to experience a temperature change? A) both will require the same amount of energy B) the metal with the greater specific heat will require the greater amount of energy C) the metal with the lower specific heat will require the greater amount of energy D) not enough information is given to determine how much energy is required
B) the metal with the greater specific heat will require the greater amount of energy
200
Penelope needed to rapidly prepare 2.0 M aqueous solution of potassium sulfate. What set of techniques most appropriately describes what Penelope could do to speed up the dissolving rate of the solute? A) Penelope increase the temperature and increase the pressure B) Mollie could increase the temperature, decrease the crystal size, or provide more stirring C) Mollie could decrease the temperature, increase the crystal size, or provide less stirring D) Mollie could increase the temperature and decrease the pressure
B) Mollie could increase the temperature, decrease the crystal size, or provide more stirring
300
The transition metals are: A) hard metals, with multiple valence states, that are generally non-reactive with water B) hard metals, with 3 valence electrons, that are generally reactive with water C) soft metals, with multiple valence states, that are generally reactive with water D) soft metals, with 3 valence electrons, that are generally non-reactive with water
A) hard metals, with multiple valence states, that are generally non-reactive with water
300
Draw the electron dot structure for Oxygen (atomic number 6). Bonus: What is the VSEPR shape for H2O?
Oxygen with 6 dots Bonus: Bent
300
What is the chemical formula for calcium carbonate? A) Ca2(CO3)2 B) Ca2CO32 C) CaCO3 D) Ca(CO3)
C) CaCO3
300
Otis was adding air to his raft before he went swimming. The raft had a pressure of 2 atm and a volume of 10 L. The temperature was 35C. How many moles of air were in Otis' raft? A) 6.96 moles B) 0.79 moles C) 0.14 moles D) 1.26 moles
B) 0.79 moles
300
When iron reacts with the following compounds, which one would create a precipitate? A) (NH4)3NO3 B) Li2Cr2O7 C) AlCN D) KClO3
B) Li2Cr2O7
400
A list of mixtures that are homogeneous might include: A) sodium chloride crystals mixed with pepper flakes B) a glass of dihydrogen monoxide (H2O) with sand at the bottom of the mixture C) a piece of copper wire surrounded by insulation D) vinegar which is a 3% solution of acetic acid dissolved in water
D) vinegar which is a 3% solution of acetic acid dissolved in water
400
Write the electron configuration for Arsenic. Write the electron configuration for Arsenic using the noble gas configuration.
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3 [Ar] 4s2 3d10 4p3
400
Balance the following equation to demonstrate the conservation of atoms in a reaction. _____Fe + ____O2 --> ____Fe2O3 A) 4,3,2 B) 2,1,1 C) 1,2,3 D) 2,3,1
A) 4,3,2
400
A bicycle tire has a pressure of 0.2 atm and a volume of 1 L when it is flat. It must be filled to a volume of 5 L. What is the pressure when the tire is full? A) 0.04 atm B) 1 atm C) 25 atm D) 0.2 atm
A) 0.04 atm
400
Identify the type and category of the following reaction: Na + H2O --> NaOH + H2
single replacement, redox
500
Draw the following patterns for periodic trends: A) increasing electronegativity B) increasing ionization energy C) increasing atomic radius Bonus: What happens to the atomic radius when an element gains electrons (the ionic radius)?
A) electronegativity: increases left to right and up B) ionization energy: increases left to right and up C) atomic radius: increases right to left and down Bonus: the ionic radius is larger than the atomic radius.
500
Write the equation for the alpha decay of Polonium-208.
Polonium-208 --> Lead-204 and an alpha particle
500
How many molecules are in 100 grams of propane, C3H8? The molar mass of propane is 44.907 grams/mole. A) 2.23 molecules B) 6.023 x 10^23 molecules C) 1.34 x 10^24 molecules D) 100 molecules
C) 1.34 x 10^24 molecules
500
If 5 L of nitrogen gas reacts with 2 L of hydrogen how many liters of NH3 are formed? 3H2 + N2 --> 2NH3 A) 4 L B) 7 L C) 3.33 L D) 2.5 L
C) 3.33 L
500
What is the molarity of a 500 mL solution with 100 grams of NaCl? Bonus: What would the molarity be if the solution was diluted to 1 L?
1.7 moles/.5 L=3.42 M 1.71 M
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