NEW
Font size
S
M
L
XL
WorksheetsElements, Compounds, Mixture
Total questions: 20
Worksheet time: 13mins
Name
Class
Date
1.
Which of the following could be a symbol on the periodic table of elements?
a)
JZ
b)
jz
c)
Jz
d)
jZ
2.
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
3.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
4.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
5.
How many elements are represented in the compound?
Na2CO3
a)
2
b)
4
c)
3
d)
5
6.
What is the difference between Co and CO?
a)
CO is an element but Co is a compound
b)
Nothing is different. They are the same thing.
c)
CO is two elements and Co is only one element
d)
CO is a mixture but Co is an element.
7.
Which one is a compound?
a)
Ni
b)
F
c)
Hg
d)
KI
8.
How many atoms are there in this compound?
a)
12
b)
3
c)
24
d)
6
9.
"Na" is the element's
a)
Chemical Formula
b)
Compound
c)
Name
d)
Chemical Symbol
10.
How many elements are in this compound?
a)
13
b)
6
c)
4
d)
3
11.
The air is a _________.
a)
element
b)
mixture
c)
compound
d)
energy
12.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
13.
Mercury is
a)
Metal
b)
Nonmetal
14.
In general, metals are _____.
a)
poor conductors of heat
b)
brittle
c)
poor conductors of electricity
d)
good conductors of heat
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)
Mixture of Compounds
b)
Mixture of Elements
c)
Compound
d)
Mixture of Elements & Compounds
18.
Use the periodic table to determine the Chemical symbol for Iron.
a)
Ir
b)
FE
c)
Fe
d)
I
19.
The oceans are primarily composed of which two elements?
a)
carbon and hydrogen
b)
calcium and silicon
c)
hydrogen and oxygen
20.
Elements can be broken down into simpler substances.
a)
false
b)
true
c)
sometimes
Reset
