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Chemistry

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Elinor McDermott

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Cards in this guide (7)
What does the second quantum number describe

The shape of the bi-paired electron cloud

How do you know if a reaction is entropy driven enthalpy driven or driven by both enthalpy and energy

If the ∆H is positive and the ∆S is positive, then the reaction is entropy driven. If the ∆H is negative and the ∆S is negative, then the reaction is enthalpy driven. If ∆H is positive and ∆S is negative, then the reaction is driven by neither of these. If ∆H is negative and ∆S is positive, then the reaction is driven by both of these.

Does radiosotope 14c and 12c have the same number of protons

Yes of course

How much mass is lost through radioactive decay if 1.8 1015 J are released

0.02kg

What is the frequency of a photon with an energy of 4.56 10 19 J

6.88 1014 Hz

What is the half-life of a radioisotope if a 40 g sample becomes 10 g after 20 minutes

10 minutes. APEX ^-^

What is the binding energy of a mole nuclei with a mass defect of 0.00084

7.56 x 10^13J / Mole

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