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LT 4.1 Interpreting Chemical Reaction Equations

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.
How many molecules of water are shown in this formula?
2H2O
a)
1
b)
2
c)
3
d)
5
2.
How many ATOMS of HYDROGEN are in 2H2O?
a)
1
b)
2
c)
3
d)
4
3.
Is this a balanced reaction equation?
H2O2 --->   2H2O  +  O2
a)
Yes
b)
No
4.
What CAN you change when you balance a chemical reaction equation?
a)
Subscripts
b)
Superscripts
c)
Coefficients
d)
Formulas
5.
How many ATOMS of OXYGEN are in 2H2O?
a)
1
b)
2
c)
4
d)
5
6.
How many MOLECULES of ethanol are shown in this formula?
a)
1
b)
2
c)
6
d)
9
7.
What side of a chemical reaction equation are the PRODUCTS found?
a)
Right
b)
Left
8.
What element is NOT balanced in this equation?
H2 +  O2 ----> H2O
a)
Hydrogen
b)
Oxygen
9.
How many CARBON ATOMS are in this formula?
2CH3CH2OH
a)
1
b)
2
c)
4
d)
10
10.
How many atoms of hydrogen are in 3 molecules of H2?
a)
1
b)
3
c)
5
d)
6

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