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PhySci Practice: Identify Ionic and Covalent Compounds

Total questions: 24

Worksheet time: 14mins

Name
Class
Date
1.

Compounds have _________________ properties, compared to the elements that form them.

a)

similar

b)

different

2.

How many valence electrons does Oxygen (O) have?

a)

6

b)

8

c)

15

d)

16

3.

Which of the following is an ionic compound?

a)

HCl

b)

H2O

c)

MgO

d)

CO2

4.

When one atom transfers one or more valence electrons to another atom, a(n) __________ is formed.

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

hair bond

5.

What is the ionic charge of a Calcium ion?

a)

2+

b)

2-

c)

3+

d)

3-

6.

What is the ionic charge of an Oxygen ion?

a)

2+

b)

2-

c)

4+

d)

4-

7.

What type of bond is formed between Li and F?

a)

Covalent

b)

Ionic

c)

Metallic

d)

Carbon

8.

When electron(s) are shared between two or more atoms, they form?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Carbon bond

9.

Which of the following is an Covalent compound?

a)

NaCl

b)

CaCl2

c)

KI

d)

CO

10.

FeO

a)

Covalent

b)

Ionic

c)

Metallic

11.

N2

a)

Covalent

b)

Ionic

c)

Metallic

12.

NH3

a)

Covalent

b)

Ionic

c)

Metallic

13.
Ionic or covalent?
C  O
a)
Ionic
b)
Covalent
14.
Ionic or covalent?
K  Br
a)
Ionic
b)
Covalent
15.
Ionic or covalent?
H  O
a)
Ionic
b)
Covalent
16.
Ionic or covalent?
N  H
a)
Ionic
b)
Covalent
17.
Ionic or covalent?
Ca  Cl
a)
Ionic
b)
Covalent
18.
In general, this type of bond will form a compound with a high melting point.
a)
Ionic
b)
Covalent
19.

Some are solids, some are liquids, and some are gases at room temperature.

a)

ionic compounds

b)

molecular compounds

20.

When dissolved in water, the solution is a good conductor of electricity.

a)

ionic compounds

b)

molecular compounds

21.

usually hard but brittle

a)

ionic compounds

b)

molecular compounds

22.
Formed when a non-metal shares electrons with another non-metal.
a)
ionic compound
b)
molecular compound
23.

Silver is a metal that is malleable and a good conductor of electricity. What best explains these properties of silver?

a)

covalent bonds between silver atoms

b)

ionic bonds between silver atoms

c)

metallic bonds between silver atoms

d)

hydrogen bonds between silver atoms

24.

A covalent compound with unequal sharing of electrons is called

a)

ionic

b)

polar

c)

nonpolar

d)

cation