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    Answers to quizz of atoms, thermodynamics, reactions

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    Question 11 Multiple Choice 20 points
    ls2 2s2 2p5 is the electron configuration for
    nitrogen
    sulfur
    magnesium
    fluorine

    Question 12 Multiple Choice 20 points
    An atom of the isotope sulfur - 31 consists of how many protons, neutrons, and electrons, (p = proton, e = electron, n = neutron):
    15 p, 16 n, 15 e
    16 p, 15 n, 16 e
    16 p, 31 n, 16 e
    32 p, 31 n, 32 e
    16 p, 16 n, 15 e

    Question 13 Multiple Choice 20 points
    An exothermic reaction causes the surroundings to:
    warm up
    become acidic
    expand
    decrease its temperature
    release CO2

    Question 14 Multiple Choice 20 points
    Which is the formula for the binary compound of potassium and nitrogen?
    KN
    K2N
    NK2
    K3N
    NK3

    Question 15 Multiple Choice 20 points
    How many mL is 0.005 L?
    0.000005
    0.5
    5
    50

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    https://brainmass.com/chemistry/energetics-and-thermodynamics/answers-to-quizz-of-atoms-thermodynamics-reactions-39897

    Solution Preview

    Question 11
    This is fluorine (one electron more and you get the element ...

    Solution Summary

    Short answers to quizz questions are given without further explanation.
    The topics are, atoms, electron configuration, exothermic reaction, chemical formula and unit of volume.

    $2.49

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