NEW
Font size
S
M
L
XL
WorksheetsElements and Compounds
Total questions: 25
Worksheet time: 21mins
Name
Class
Date
1.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
2.
Is water an element or a compound?
a)
Element
b)
Compound
3.
A compound consists of two or more elements bound together.
a)
True
b)
False
4.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
5.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
6.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
7.
Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
8.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
9.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
10.
Which of the following an element?
a)
Carbonic Acid
b)
Copper
c)
Iron and Copper
d)
Water
11.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
12.
Both elements and compounds are pure substances.
a)
Agree
b)
Disagree
13.
Every compound has a chemical formula.
a)
Agree
b)
Disagree
14.
Carbon, Ar, and Ne are examples of elements.
a)
Agree
b)
Disagree
15.
NaCl is an example of a compound that contains helium and oxygen atoms.
a)
Agree
b)
Disagree
16.
Compounds have properties different from the elements that make it up.
a)
Agree
b)
Disagree
17.
Found on Earth
a)
Elements
b)
Compounds
c)
Both
18.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
19.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
20.
Are these molecules also compounds?
a)
YES
b)
NO
21.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
22.
Which of the following is the most abundant element Earth’s crust?
a)
Calcium
b)
Iron
c)
Oxygen
d)
Potassium
23.
A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?
a)
Mn
b)
Magnesium
c)
Mg
d)
12
24.
Use the periodic table to determine the Chemical symbol for Iron.
a)
Ir
b)
FE
c)
Fe
d)
I
25.
What is the difference between a compound and an element?
a)
Compounds are made up of elements and can be chemically separated. Elements cannot be separated.
b)
Elements make up compounds. Elements can be separated but compounds cannot be separated.
c)
Elements are found on the periodic table and compounds are found on the dining room table.
Reset
