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WorksheetsElements, compounds and Mixtures
Total questions: 50
Worksheet time: 50mins
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.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
6.
Examples are diamonds (C) and Uranium (U)
a)
elements
b)
mixtures
c)
compounds
7.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
8.
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
9.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
10.
In general, metals are _____.
a)
poor conductors of heat
b)
brittle
c)
poor conductors of electricity
d)
good conductors of heat
11.
Shiny
a)
Metal
b)
Nonmetal
12.
Sulfur
a)
Metal
b)
Nonmetal
13.
What is salad?
a)
element
b)
compound
c)
mixture
14.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
15.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
16.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements & Compounds
d)
Mixture of Compounds
17.
Classify the picture with the correct label.
a)
Compounds
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements & Compounds
18.
Classify the picture with the correct label.
a)
Mixture of Elements
b)
Compound
c)
Mixture of Compounds
d)
Element
19.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Compounds
d)
Mixture of Elements
20.
Classify the picture with the correct label.
a)
Mixture of Compounds
b)
Mixture of Elements
c)
Compound
d)
Mixture of Elements & Compounds
21.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
22.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
23.
Salt has a chemical formula of NaCl. Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
24.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
25.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
26.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
27.
A combination of substances that are not chemically combined is called a(n)____________.
a)
mixture
b)
compound
c)
physical
28.
Mixtures are separated through ___________changes.
a)
mixture
b)
compound
c)
physical
29.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
30.
_____ small particles that make up most types of matter on Earth.
a)
compounds
b)
atoms
c)
mixtures
d)
elements
31.
In general, metals are _____.
a)
poor conductors of heat
b)
brittle
c)
poor conductors of electricity
d)
good conductors of heat
32.
Vertical columns in the periodic table are called _________ of elements and have similar properties.
a)
groups
b)
periods
33.
The horizontal rows on the periodic table are known as
a)
periods.
b)
atoms.
c)
groups or families.
d)
valence electrons.
34.
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
35.
The blue numbers in the image below are called ___________.
a)
compounds
b)
coefficients
c)
subscripts
d)
chemical formulas
36.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
37.
compounds are chemically bounded together
a)
False
b)
true
c)
I don't know?
38.
Can an element be broken down into a simpler substance
a)
yes
b)
No
39.
Are there any compounds on the periodic table
a)
yes there are many
b)
no because only elements are on the periodic table
c)
I think they are?
40.
Which one has more than one type of atom in it
a)
Element
b)
Compound
41.
which one only has one type of atom In it.
a)
Element
b)
compound
42.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
43.
which one can be found on the periodic table
a)
Compound
b)
Element
44.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
45.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
46.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
47.
Water is an example of:
a)
compound
b)
element
c)
solution
48.
A combination of substances that are not chemically combined is called a(n)____________.
a)
mixture
b)
compound
c)
physical
49.
Mixtures are separated through ___________changes.
a)
mixture
b)
compound
c)
physical
50.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
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