WorksheetsElements vs compounds
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
Element or Compound?
H2O
H2O
a)
Element
b)
Compound
2.
Element or Compound?
Au
Au
a)
Element
b)
Compound
3.
Element or Compound?
Oxygen
Oxygen
a)
Element
b)
Compound
4.
Element or Compound?
Salt (NaCl)
Salt (NaCl)
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.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
8.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
9.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
10.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
11.
A pure substance containing only one kind of atom.
a)
element
b)
mixture
c)
compound
12.
Is a human made of matter?
a)
yes
b)
no
c)
?
d)
mabye
13.
Which item is not made of matter?
a)
air
b)
water
c)
a pencil
d)
a shadow
14.
CO2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic
15.
NaCl
a)
Ionic
b)
Covalent
c)
Metallic
d)
Polyatomic Ion
16.
When dissolved in water, the solution is a good conductor of electricity.
a)
ionic compounds
b)
covalent compounds
17.
usually hard but brittle
a)
ionic compounds
b)
covalent compounds
18.
Which of the following is a characteristic property of ionic compounds?
a)
They form hard, brittle crystals with characteristic shapes
b)
They have low melting points
c)
They have low boiling points
d)
They contain no charged particles
19.
In general, this type of bond will form a compound with a high melting point.
a)
Ionic
b)
Covalent
20.
What property is describing an ionic compound?
a)
shares electrons
b)
high melting point
c)
weak bonds
d)
made up of nonmetals.
100 %
