chem sem review

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    Alpha, Beta,

    Gamma

    Acid/Bases/

    Alpha,Beta

    Gamma

    STP/

    CalculationsCalculations

    Calculations

    2

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    What particle is emitted inalpha radiation?

    a. Electronb. protonc. Helium nucleus

    d. hydrogen nucleus

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    c. Helium nucleus

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    A Beta particle is

    a. Protonb. Electronc. Helium nucleusd. Hydrogen nucleus

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    b. electron

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    What is the change in atomicmass when an atom emits a

    beta particle?

    a. Decrease by 2b. Decrease by 1c. Remains the same

    d. Increase by 1

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    b. Decrease by 1

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    What is the change in atomicmass when an atom emits

    gamma radiation?

    a. Decrease by 2b. Decrease by 1c. Remains the samed. Increase by 1

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    c. remains the Same.

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    What is an acidaccording toArrhenius?

    a. A substance that ionizes to yield protons in

    aqueous solutionsb. a substance that is a hydrogen ion donorc. a substance that accepts electron pairsd. A substance that is a Hydrogen ion acceptor

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    b. A substance that is a hydrogenion donor.

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    Which of these is an Arrhenius base?

    a. LiOHb. NH3

    c. H2PO4d. CH3COOH

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    A. LiOH

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    What is transferredbetween a conjugate

    acid-base pair?

    a. Electronb. Protonc. Hydrogen Iond. Hydronium Ion

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    B. Proton

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    In the reaction of aluminum bromide withionized sodium bromide, which compound

    is a Lewis acid?

    a.A

    luminum bromideb. bromide ionc. Sodium iond. none

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    a. Aluminum bromide

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    Which is a sulfuric acid?

    a. Monoprotic

    b. Diproticc. Triproticd. none

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    b. diprotic

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    What instrument is normally used tomeasure atmospheric pressure?

    a. Thermometer

    b. Barometerc. Vacuumd. Manometer

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    B. Barometer

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    What is one standard atmosphere of

    pressure in kilopascals?

    a. 0 Kpab. 101.3 Kpa

    c. 760 Kpad. 1 Kpa

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    B. 101.3 Kpa

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    With what temperature scale is

    temperature directly proportionaltwo average kinetic energy?

    .a. Celsiusb. Fahrenheitc. Kelvind. Centigrade

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    c. Kelvin

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    What happens to the range of

    energies of the particles in matterwhen the temperature is increased?

    a. The range of energies becomes narrowerb. The range of energies becomes broaderc. The range of energies is not changesd. The range of energies cannot be determined

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    b. The range of energies becomesbroader

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    How many liters of Hydrogen gas

    are needed to react with CS2 toproduce 2.50L of CH4 at STP?

    a. 2.50Lb. 50.0Lc. 7.50Ld. 10.0L

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    d. 10.0L

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    How many liters of NH3 are needed

    to react completely with 30L of NOat STP?

    a. 5Lb. 20Lc. 7.5Ld. 120L

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    b. 20L

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    How many liters of chlorinegas can be produced when .

    98L of HCl react with excess O2at STP?

    a. 0.98L

    b. 0.49Lc. 3.9Ld. 2.0L

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    b. 0.49L

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    Methane and hydrogen sulfide form when it

    reacts with Carbon disulfide. Identify theexcess reagent and calculate how much after

    36L H2 reacts with 12L of Cs2.

    a. 3LCS2b. 6LCS2c. 9LCS2d. 12LH2

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    a. 3LCS2

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    How many grams of Lead(II) acetatemust be used to make 500mL of a

    solution that is to contain 10.0mg/mL?

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    7.84 g of Lead(II)

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    What would be the molarity of asolution obtained when 50.0mL of3.00M HCl solution is diluted with

    70mL of H2O?

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    2.1M

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    Calculate the molarity when 150mL ofH2O is added to 14mL of 18M H2SO4.

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    1.68M

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    If 3.25g of a molecularsubstance is dissolved

    in 125g of H2O, what isthe molecular mass ofthe solute it the solutionfreezes at -0.93 degrees

    Celsius?

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    Molar Mass = 52 g/mol

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    Calculate the boiling point of a solutioncontaining 5.70g of sucrose, C12H22O11,dissolved in 50g of benzene, C6H6.

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    80.9l degrees C