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WorksheetsELEMENTS COMPOUNDS MIXTURES
Total questions: 35
Worksheet time: 27mins
Name
Class
Date
1.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
2.
Contains two or more atoms combined
a)
Elements
b)
Compounds
c)
Mixtures
3.
The air is a _________.
a)
element
b)
mixture
c)
compound
d)
energy
4.
Elements can be broken down into simpler substances.
a)
false
b)
true
c)
sometimes
5.
What is H2SO4
made up of?
made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
6.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
7.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
8.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
9.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements & Compounds
d)
Mixture of Compounds
10.
What is this element...Au
a)
Iron
b)
Titanium
c)
Gold
d)
Flourine
11.
Element:Fe
a)
Gold
b)
Flourine
c)
Phosphorus
d)
Iron
12.
Water compound
a)
NaCl
b)
H2O
c)
Protein
d)
CaCO
13.
What is the symbol for Calcium
a)
Cl
b)
Ca
c)
Cm
d)
ca
14.
What does the element AI stand for ?
a)
Gold
b)
Actinium
c)
Iron
d)
Aluminum
15.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
16.
which one can be found on the periodic table
a)
Compound
b)
Element
17.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
18.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
19.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol
20.
What is K?
a)
potassium
b)
berkelium
c)
sodium
d)
cacium
21.
The smallest unit of an element that still has the properties of that element is?
a)
a substance
b)
a mixture
c)
a compound
d)
an atom
22.
Which of these is not an example of a molecule?
a)
CH4
b)
C
c)
C6H12O6
d)
H2O
23.
Two or more elements chemically combined:
a)
an atom
b)
a compound
c)
a mixture
d)
a pure substance
24.
The smallest unit of a compound that still has the properties of that compound is?
a)
an atom
b)
a molecule
c)
a mixture
d)
a substance
25.
Which of the following would be an example of a chemical formula:
a)
C6H12O6
b)
F= ma
c)
2 H2 + O2 -> 2 H2O
d)
6.02 x 10 23
26.
What is a pure substance made of two or more elements that are chemically combined called?
a)
A. element
b)
B. compound
c)
C. mixture
d)
D. solution
27.
How many Elements are in this compound?
CuSO4
CuSO4
a)
3
b)
1
c)
4
d)
5
28.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
29.
This picture represents which of the following?
a)
Element
b)
Compound
c)
Mixture
30.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
31.
Elements are represented by chemical symbol. Symbols are written with
a)
all lower case letters
b)
all capital letters
c)
always only one letter
d)
At least and ONLY one capital letter
32.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
33.
What is water?
a)
element
b)
compound
c)
mixture
34.
Can an element be broken down into a simpler substance
a)
yes
b)
No
35.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
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