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Worksheetselements & compounds
Total questions: 19
Worksheet time: 19mins
Name
Class
Date
1.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
2.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
3.
Which of the following could be a symbol on he periodic table of elements?
a)
JZ
b)
jz
c)
Jz
d)
JZa
4.
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
5.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
6.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
7.
Which of the following an element?
a)
Carbonic Acid
b)
Copper
c)
Iron and Copper
d)
Water
8.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
9.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
10.
Is water an element or a compound?
a)
Element
b)
Compound
11.
The properties of the elements that make up a compound are usually very similar to the compound itself.
a)
True
b)
False
12.
A compound consists of two or more elements bound together.
a)
True
b)
False
13.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
14.
What is the symbol for Calcium
a)
Cl
b)
Ca
c)
Cm
d)
ca
15.
Element is a
a)
pure substance
b)
compound
c)
mixture
d)
molecule
16.
What does the element AI stand for ?
a)
Gold
b)
Actinium
c)
Iron
d)
Aluminum
17.
SULFUR
a)
Su
b)
S
c)
Sf
d)
Si
18.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
19.
which one can be found on the periodic table
a)
Compound
b)
Element
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