Transcript You are given an aqueous solution that contains a Co 2

Molecules and Compounds
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5.1
The mass ratio of lead to sulfur in lead(II)
sulfide is 270.0 g lead to 41.8 g sulfur. How
much lead is required to completely react with
85.6 g of sulfur?
a.
b.
c.
d.
e.
13.3 g
185 g
228 g
312 g
553 g
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5.2
How many hydrogen atoms are in the formula
for ammonium phosphate, (NH4)3PO4?
a.
b.
c.
d.
e.
1
3
4
7
12
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5.4
Write the chemical formula of the compound
containing 2 phosphorus atoms and 5 oxygen
atoms.
a.
b.
c.
d.
e.
2P5O
P2O5
OP
P2.5O
P5O2
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5.5
What is the total number of atoms in a
molecule of glucose, C6H12O6?
a.
b.
c.
d.
e.
3
4
6
12
24
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5.9
Aluminum carbonate is considered which of
the following?
a.
b.
c.
d.
e.
Atomic element
Covalent/Molecular element
Covalent/Molecular compound
Ionic compound
Diatomic molecule
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5.10
How many elements occur as diatomic
molecules?
a.
b.
c.
d.
e.
4
6
3
10
7
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5.11
What is the formula of the compound formed
from lithium and nitrogen?
a.
b.
c.
d.
e.
LiN2
Li2N3
Li3N2
Li3N
LiN
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5.12
The name of the compound AgCl is
a.
b.
c.
d.
e.
silver chlorine.
silver chloride.
silver(I) chloride.
silver monochloride.
monosilver monochloride.
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5.13
The name of the compound Fe2O3 is
a.
b.
c.
d.
e.
iron oxide.
iron(II) oxide.
iron(III) oxide.
diiron trioxide.
iron(II) oxide(III).
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5.15
What is the formula of the ammonium ion?
a.
b.
c.
d.
e.
NH3+
NH3
NH42+
NH4
NH4+
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5.16
Name the following polyatomic ions in their
listed order: OH–, CO32–, and PO43–.
a.
b.
c.
d.
e.
Hydroxide ion, carbonate ion, phosphate ion
Oxide ion, carbonate ion, phosphate ion
Hydroxide ion, carbonate ion, phosphite ion
Hydroxide ion, carbonite ion, phosphate ion
Oxide ion, carbonate ion, phosphite ion
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5.17
The name of the compound NH4ClO4 is
a.
b.
c.
d.
e.
ammonium chloride.
ammonium chlorite.
ammonium hypochlorite.
ammonium chlorate.
ammonium perchlorate.
© 2012 Pearson Education, Inc.
5.18
The name of the compound SnO2 is
a.
b.
c.
d.
e.
stannium oxide.
stannium(II) oxide.
stannium(IV) oxide.
tin(II) oxide.
tin(IV) oxide.
© 2012 Pearson Education, Inc.
5.21
The name of the compound HCl(g) is
a.
b.
c.
d.
e.
hydrochloric acid.
hydrogen chloride.
hypochlorous acid.
chloric acid.
hypochloric acid.
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5.22
The correct formula for chloric acid is
a.
b.
c.
d.
e.
HClO.
HClO2.
HClO3.
HClO4.
HClO5.
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5.23
The correct formula for nickel(II) carbonate is
a.
b.
c.
d.
e.
NiCO3.
Ni2CO3.
Ni(CO3)2.
NiC.
Ni3(CO2)2.
© 2012 Pearson Education, Inc.
5.24
Which is the correct formula for ammonium
dichromate?
a.
b.
c.
d.
e.
NH4Cr2
NH4Cr2O4
(NH4)2Cr2O4
NH4Cr2O7
(NH4)2Cr2O7
© 2012 Pearson Education, Inc.
5.25
What is the correct formula for dinitrogen
tetrahydride?
a.
b.
c.
d.
e.
N2H3
N2H4
N2H5
Ni2H4
N2OH4
© 2012 Pearson Education, Inc.
5.28
What is the formula mass of sodium sulfite?
a.
b.
c.
d.
e.
215.1
119.1
126.0
142.1
125.1
amu
amu
amu
amu
amu
© 2012 Pearson Education, Inc.
5.29
What is the formula mass of (NH4)2SO4?
a.
b.
c.
d.
e.
215.1
119.1
126.0
132.1
114.1
amu
amu
amu
amu
amu
© 2012 Pearson Education, Inc.
5.30
How many nitrogen atoms are in the formula
for ammonium phosphate, (NH4)3PO4?
a.
b.
c.
d.
e.
1
3
4
7
12
© 2012 Pearson Education, Inc.
5.33
How is the compound I2O5 named?
a.
b.
c.
d.
e.
Diiodine pentoxygen
Diiodine tetroxide
Pentoxide of iodine
Iodine oxide
Diiodine pentoxide
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