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WorksheetsFormulas and Equations
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
What is the total number of atoms of oxygen in the formula Mg(ClO4)2.6H2O?
a)
6
b)
8
c)
10
d)
14
2.
What is the chemical formula for Iron(III) sulfide?
a)
Fe2(SO3)3
b)
Fe2S3
c)
FeSO3
d)
FeS
3.
A reaction in which two substances combine to form a single product is called a
a)
decomposition
b)
single replacement
c)
synthesis
d)
double replacement
4.
Two molecules of hydrogen are represented by
a)
H2
b)
2H2
c)
2H+
d)
2H
5.
Pb + AgNO3--> Ag + Pb(NO3)2
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
6.
How many oxygen atoms are in the following formula Ba(NO3)2
a)
3
b)
9
c)
6
d)
10
7.
What is the total number of hydrogen atoms in the following formula? 5Mg(C2H3O2)2
a)
15
b)
30
c)
8
d)
20
8.
How many atoms are present in the following formula? BaCl2.3H2O
a)
8
b)
16
c)
12
d)
10
9.
What is the ration of Calcium to phosphate in the following formula? Ca3(PO4)2
a)
2:3
b)
3:2
c)
3:8
d)
1:2
10.
What is the name of the following formula SiF4
a)
Silicon (IV) Fluoride
b)
Silicon Tetrafluoride
c)
Tetra silicon fluoride
d)
Silicon fluoride (IV)
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