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WorksheetsRotation Start with me Counting
Total questions: 16
Worksheet time: 13mins
Name
Class
Date
1.
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
2.
How many Aluminum are in Al2O3?
a)
3
b)
2
c)
5
3.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
4.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
5.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
6.
How many atoms of Hydrogen are in this compound
a)
1
b)
2
c)
3
d)
4
7.
How many atoms are in the element Carbon in this compound?
H2C3O4N5
H2C3O4N5
a)
2
b)
3
c)
4
d)
5
8.
In this compound structure of alcohol, how many Hydrogen atoms are there?
a)
2
b)
4
c)
6
d)
8
9.
2H2 + O2 ----> 2H2O What is the product?
a)
------>
b)
2H2O
c)
2H2+ O2
10.
2H2 + O2 --------> 2H2O What are the reactants?
a)
----->
b)
2H2O
c)
2H2 +O2
11.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
12.
(Element or Compound)
C2H8O
C2H8O
a)
Element
b)
Letters
c)
Numbers
d)
Compound
13.
The substances at the beginning of a chemical equation are called the ____
a)
product
b)
yield
c)
chemical symbol
d)
reactants
14.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
15.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
16.
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O
b)
MgO
c)
Mg and MgO
d)
O and MgO
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