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
pts
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
: