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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

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.

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