Final Exam: General Chemistry (Chem 14A) - UCLA | Questions and Answers latest updated 2025/26.

Final Exam Results for WALKER, BECCA
Score for this quiz: 57 out of 60 *
Submitted Dec 4 at 10:14am
This attempt took 134 minutes.

pts
Question 1


The answer of the following calculation (4.16 x 2.1 x 32.1) + 16.55
will have _____ significant figures.


You Answered 2



1


5


4


Correct Answer 3




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Question 2


Which statement concerning the structure of the atom is correct?




:

, Electrons have most of the mass but occupy very little of the
volume of the atom.




Electrons have most of the mass and occupy most of the volume
of the atom.




Protons and neutrons have most of the mass and occupy most of
the volume of the atom.




Protons and electrons have most of the mass and occupy most of
the volume of the atom.



Correct!
Protons and neutrons have most of the mass but occupy very little
of the volume of the atom.




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Question 3


Which of the following names is correct?


diphosphorus pentaoxygen


magnesium (II) oxide

Correct! aluminum oxide




:

, cobalt chloride


copper oxide




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Question 4


Which of the following pairs is correct?



ammonium ion, NH3


diphosphorus pentasulfide, P2O5


mononitrogen dioxide, NO2


sulfur hexafluorine, SF6

Correct!
iodine trichloride, ICl3




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Question 5


The correct name for Fe2O3 is


iron(II) oxide


iron oxide




:

, diiron trioxide

Correct!
iron(III) oxide


iron trioxide




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Question 6


The correct formula for the chromate ion is



Cr3+


Cr2O7-


CrO4-

Correct!
CrO42-


Cr2O72-




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Question 7


The correct name for H2O2 is


dihydrogen oxide





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