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WorksheetsChemical Formula Quiz KS3
Total questions: 15
Worksheet time: 17mins
Name
Class
Date
1.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
2.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
3.
Element or compound?
H2O
H2O
a)
element
b)
compound
4.
Element or compound?
O2
O2
a)
Element
b)
Compound
5.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
6.
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
7.
Which is the correct formula for:
one carbon (C)
two oxygen (O)
one carbon (C)
two oxygen (O)
a)
CO2
b)
CO
c)
C2O
d)
2CO
8.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
9.
Which of the following is NOT an element?
a)
H2O
b)
H2
c)
O2
d)
Au
10.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
11.
The substances at the beginning of a chemical equation are called the ____
a)
product
b)
yield
c)
chemical symbol
d)
reactants
12.
Black = Carbon (C)
White = Hydrogen (H)
What would be the formula for ethane?
White = Hydrogen (H)
What would be the formula for ethane?
a)
CH4
b)
CH6
c)
C2H2
d)
C2H6
13.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
14.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
15.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
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