WorksheetsElements, Compounds & Mixtures Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
He
Based on this symbol, what can you tell about Helium (He)?
a)
Helium is a compound
b)
Helium is an element
c)
helium is a metal
d)
helium is a mixture
2.
Which combination of letters can be used as a chemical symbol for an element?
a)
NP
b)
pks
c)
Cl
d)
FEOB
3.
Water ( H2O) is a compound because-
a)
it is made of two different elements
b)
useful to humans
c)
a gas at room temperature
d)
given off by plants
4.
CO + H2O > CO2 + H2
Which substance represented in this equation is classified as an ELEMENT?
a)
CO
b)
H2O
c)
CO2
d)
H
5.
How many Capital or Uppercase letters can one element have?
a)
5
b)
1
c)
3
d)
2
6.
How many elements are present in this compound?
NaHCO3
a)
1
b)
2
c)
3
d)
4
7.
How many elements are in this compound?
B6Cl2OH
a)
4
b)
3
c)
2
d)
1
8.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
9.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
10.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
11.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
12.
You are eating a pizza. What type of mixture are you consuming?
a)
homogeneous
b)
heterogeneous
c)
pure substance
d)
The Periodic Table
13.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
14.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
15.
A pure substance that cannot be broken down into other substances by chemical or physical means.
a)
compound
b)
atom
c)
mixture
d)
element
100 %
