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WorksheetsIonic Formulas
Total questions: 17
Worksheet time: 34mins
Name
Class
Date
1.
When adding a subscript to a polyatomic ion, you should...
a)
multiply any subscripts on the polyatomic ion by the subscript you are adding
b)
put parentheses around the polyatomic ion before adding a subscript
c)
write the new subscript next to any subscripts on the polyatomic ion
d)
put the polyatomic ion in square brackets before adding the subscript
2.
Mg2+ and Cl- create...
a)
Mg2Cl
b)
MgCl2
c)
Mg2Cl2
d)
MgCl
3.
Ca2+ and N3- create...
a)
Ca2N3
b)
Ca3N2
c)
CaN3
d)
Ca2N
4.
Na+ and Cl- create...
a)
Na2Cl
b)
NaCl2
c)
Na2Cl2
d)
NaCl
5.
Fe +2 and SO4 -2
a)
FeSO4
b)
Fe4(SO4)2
c)
FeSO2
d)
correct answer is not given
6.
Ca +2 and OH -
a)
Ca2OH
b)
CaOH2
c)
Ca(OH)2
d)
correct answer is not given
7.
How do the following two elements bond together? Al3+ O2-
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
8.
When naming ionic compounds, the cation is always named first and the anion is always named second.
a)
False
b)
True
9.
Be careful with this question..... SO4 -2 and Al +3
a)
(SO4)3Al2
b)
(SO4)2Al3
c)
Al3SO4
d)
Al2(SO4)3
10.
Potassium and Sulfur create...
a)
KS
b)
KS2
c)
K2S
d)
K2S2
11.
Calcium and Oxygen create...
a)
CaO
b)
OCa
c)
Ca2O2
d)
CaO2
12.
The formula of calcium and phosphate is
a)
CaPO4
b)
Ca2(PO4)3
c)
Ca3PO4
d)
Ca3(PO4)2
13.
The chemical formula of Iron (III) and bromine is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
14.
What is the formula for copper(I) and sulfate?
a)
CuSO3
b)
CuSO4
c)
Cu2SO3
d)
Cu2SO4
15.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
16.
The formula of calcium phosphate is
a)
CaPO4
b)
Ca2(PO4)3
c)
Ca3PO4
d)
Ca3(PO4)2
17.
The chemical formula of Iron (III) bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
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