Free Printable Ionic vs Covalent Compounds

1.

Which of the following is an example of an ionic compound?

a)

$\mathrm{CO_2}$

b)

$\mathrm{NaCl}$

c)

$\mathrm{CH_4}$

d)

$\mathrm{H_2O}$

2.

Which of the following is a covalent compound?

a)

$\mathrm{KBr}$

b)

$\mathrm{H_2O}$

c)

$\mathrm{NaF}$

d)

$\mathrm{MgO}$

3.

What is the correct name for $\mathrm{NaCl}$ ?

a)

Sodium chloride

b)

Sodium chlorate

c)

Sodium chlorite

d)

Sodium hypochlorite

4.

What is the correct name for $\mathrm{CO_2}$ ?

a)

Carbon monoxide

b)

Carbon dioxide

c)

Carbon trioxide

d)

Dicarbon monoxide

5.

Which of the following compounds is ionic?

a)

$\mathrm{NH_3}$

b)

$\mathrm{K_2O}$

c)

$\mathrm{CCl_4}$

d)

$\mathrm{SO_2}$

6.

Which of the following is a covalent compound?

a)

$\mathrm{MgCl_2}$

b)

$\mathrm{HCl}$

c)

$\mathrm{Na_2O}$

d)

$\mathrm{CaF_2}$

7.

What is the correct name for $\mathrm{N_2O_5}$ ?

a)

Dinitrogen pentoxide

b)

Nitrogen pentoxide

c)

Nitrogen dioxide

d)

Dinitrogen oxide

8.

What is the correct name for $\mathrm{MgO}$ ?

a)

Magnesium dioxide

b)

Magnesium oxide

c)

Magnesium monoxide

d)

Magnesium peroxide

9.

Which of the following is an example of an ionic compound?

a)

$\mathrm{SO_3}$

b)

$\mathrm{Na_2SO_4}$

c)

$\mathrm{PCl_3}$

d)

$\mathrm{NO_2}$

10.

Which of the following is a covalent compound?

a)

$\mathrm{CaCl_2}$

b)

$\mathrm{CO}$

c)

$\mathrm{KNO_3}$

d)

$\mathrm{NaBr}$

11.

Which of the following best describes the bonding in $\mathrm{NaCl}$ ?

a)

Sharing of electrons between atoms

b)

Transfer of electrons from sodium to chlorine

c)

Metallic bonding

d)

Hydrogen bonding

12.

Which of the following best describes the bonding in $\mathrm{H_2O}$ ?

a)

Transfer of electrons from hydrogen to oxygen

b)

Sharing of electrons between hydrogen and oxygen

c)

Metallic bonding

d)

Ionic bonding

13.

Identify the compound that contains both ionic and covalent bonds.

a)

$\mathrm{NaCl}$

b)

$\mathrm{NH_3}$

c)

$\mathrm{NaNO_3}$

d)

$\mathrm{CO_2}$

14.

Which of the following formulas represents a compound with only covalent bonds?

a)

$\mathrm{K_2SO_4}$

b)

$\mathrm{C_2H_6}$

c)

$\mathrm{CaCO_3}$

d)

$\mathrm{NaOH}$

15.

Which of the following is the correct name for $\mathrm{PCl_5}$ ?

a)

Phosphorus pentachloride

b)

Phosphorus chloride

c)

Phosphorus pentachlorate

d)

Phosphorus monochloride

16.

Which of the following is the correct name for $\mathrm{Al_2O_3}$ ?

a)

Aluminum trioxide

b)

Dialuminum trioxide

c)

Aluminum oxide

d)

Aluminum dioxide

17.

Which of the following compounds is most likely to have a high melting point due to its bonding type?

a)

$\mathrm{CO_2}$

b)

$\mathrm{NaCl}$

c)

$\mathrm{H_2O}$

d)

$\mathrm{NH_3}$

18.

Which of the following compounds is most likely to exist as a gas at room temperature?

a)

$\mathrm{KBr}$

b)

$\mathrm{CO_2}$

c)

$\mathrm{NaCl}$

d)

$\mathrm{MgO}$

19.

Given the formula $\mathrm{CaCl_2}$ , determine if the compound is ionic or covalent and explain your reasoning.

a)

Covalent, because it contains only nonmetals

b)

Ionic, because it contains a metal and a nonmetal

c)

Covalent, because it contains a metal and a nonmetal

d)

Ionic, because it contains only nonmetals

20.

Given the formula $\mathrm{N_2O_4}$ , determine if the compound is ionic or covalent and explain your reasoning.

a)

Ionic, because it contains a metal and a nonmetal

b)

Covalent, because it contains only nonmetals

c)

Ionic, because it contains only nonmetals

d)

Covalent, because it contains a metal and a nonmetal

21.

A student is given four compounds: $\mathrm{NaCl}$ , $\mathrm{CO_2}$ , $\mathrm{KBr}$ , and $\mathrm{H_2O}$ . Which two are covalent compounds, and what evidence supports your answer?

a)

$\mathrm{NaCl}$ and $\mathrm{KBr}$ ; both contain metals

b)

$\mathrm{CO_2}$ and $\mathrm{H_2O}$ ; both contain only nonmetals

c)

$\mathrm{NaCl}$ and $\mathrm{CO_2}$ ; both are gases at room temperature

d)

$\mathrm{KBr}$ and $\mathrm{H_2O}$ ; both are soluble in water

22.

You are asked to name the compound $\mathrm{SF_6}$ . What is the correct name, and what rules did you use to determine it?

a)

Sulfur hexafluoride; use prefixes for covalent compounds

b)

Sulfur fluoride; use Roman numerals for ionic compounds

c)

Sulfur(VI) fluoride; use oxidation numbers

d)

Sulfur hexafluoride; use Roman numerals for ionic compounds

23.

A compound is formed between magnesium and chlorine. Predict the formula and classify the compound as ionic or covalent, explaining your reasoning.

a)

$\mathrm{MgCl_2}$ , ionic; metal and nonmetal

b)

$\mathrm{Mg_2Cl}$ , covalent; two metals

c)

$\mathrm{MgCl}$ , covalent; nonmetals only

d)

$\mathrm{Mg_2Cl_2}$ , ionic; nonmetals only

24.

Given the name dinitrogen trioxide, write the chemical formula and explain why it is classified as a covalent compound.

a)

$\mathrm{N_2O_3}$ ; contains only nonmetals

b)

$\mathrm{NO_3}$ ; contains a metal and a nonmetal

c)

$\mathrm{N_3O_2}$ ; contains only metals

d)

$\mathrm{NO_2}$ ; contains a metal and a nonmetal

25.

A student writes the formula $\mathrm{CaCO_3}$ for calcium carbonate. Is this compound ionic or covalent? Justify your answer.

a)

Ionic; contains a metal and a polyatomic ion

b)

Covalent; contains only nonmetals

c)

Covalent; contains a metal and a nonmetal

d)

Ionic; contains only nonmetals

26.

You are given the formula $\mathrm{P_2O_5}$ . Name the compound and explain the naming convention used.

a)

Diphosphorus pentoxide; prefixes for covalent compounds

b)

Phosphorus oxide; Roman numerals for ionic compounds

c)

Diphosphorus oxide; oxidation numbers

d)

Phosphorus(V) oxide; stock system for ionic compounds

27.

A compound is named potassium nitrate. Write its formula and explain why it is classified as an ionic compound.

a)

$\mathrm{KNO_3}$ ; contains a metal and a polyatomic ion

b)

$\mathrm{KNO_2}$ ; contains only nonmetals

c)

$\mathrm{K_2NO_3}$ ; contains only metals

d)

$\mathrm{KNO_3}$ ; contains only nonmetals

28.

Given the formula $\mathrm{CCl_4}$ , classify the compound as ionic or covalent and justify your answer.

a)

Covalent; contains only nonmetals

b)

Ionic; contains a metal and a nonmetal

c)

Covalent; contains a metal and a nonmetal

d)

Ionic; contains only nonmetals

29.

A student is asked to name $\mathrm{FeCl_3}$ . What is the correct name, and what rules are used for naming this compound?

a)

Iron(III) chloride; use Roman numerals for transition metals in ionic compounds

b)

Iron trichloride; use prefixes for covalent compounds

c)

Iron chloride; use oxidation numbers for covalent compounds

d)

Iron(III) chloride; use prefixes for covalent compounds

30.

Given the name sulfur dioxide, write the chemical formula and explain why it is classified as a covalent compound.

a)

$\mathrm{SO_2}$ ; contains only nonmetals

b)

$\mathrm{SO_3}$ ; contains a metal and a nonmetal

c)

$\mathrm{S_2O}$ ; contains only metals

d)

$\mathrm{SO}$ ; contains a metal and a nonmetal

31.

Which of the following compounds is classified as a covalent compound?

a)

$\mathrm{Na_2O}$

b)

$\mathrm{CCl_4}$

c)

$\mathrm{MgCl_2}$

d)

$\mathrm{KNO_3}$

32.

What is the correct name for $\mathrm{PCl_5}$ ?

a)

Phosphorus pentachloride

b)

Pentaphosphorus chloride

c)

Phosphorus(V) chloride

d)

Phosphorus monochloride

33.

Given the formula $\mathrm{Li_2SO_4}$ , determine if the compound is ionic or covalent and explain your reasoning.

a)

Covalent, because it contains only nonmetals

b)

Ionic, because it contains a metal and a polyatomic ion

c)

Covalent, because it contains a metal and a nonmetal

d)

Ionic, because it contains only nonmetals

34.

What is the correct name for $\mathrm{SO_3}$ ?

a)

Sulfur dioxide

b)

Sulfur monoxide

c)

Disulfur trioxide

d)

Sulfur trioxide

35.

Which of the following compounds is covalent?

a)

$\mathrm{MgF_2}$

b)

$\mathrm{Na_2O}$

c)

$\mathrm{CO_2}$

d)

$\mathrm{KCl}$

36.

Which of the following best describes the bonding in $\mathrm{CaF_2}$ ?

a)

Hydrogen bonding

b)

Sharing of electrons between calcium and fluorine

c)

Metallic bonding

d)

Transfer of electrons from calcium to fluorine

37.

Which of the following compounds contains both ionic and covalent bonds?

a)

$\mathrm{Na_2SO_4}$

b)

$\mathrm{KCl}$

c)

$\mathrm{CO_2}$

d)

$\mathrm{H_2O}$

38.

What is the correct name for $\mathrm{N_2O_5}$ ?

a)

Dinitrogen pentoxide

b)

Nitrogen dioxide

c)

Nitrogen pentoxide

d)

Dinitrogen trioxide

39.

Which of the following best describes the bonding in $\mathrm{MgCl_2}$ ?

a)

Metallic bonding

b)

Sharing of electrons between magnesium and chlorine

c)

Transfer of electrons from magnesium to chlorine

d)

Hydrogen bonding

40.

Organize these options into properties of ionic compounds or properties of covalent compounds

Categorize the following

Arranged in crystalline solids

High melting and boiling points

Can conduct electricity when dissolved in water

Makes liquids or gases

Low melting and boiling point

Cannot conduct electricity

Ionic Compounds

Covalent Compounds

41.

compounds are usually solid at room temperature and form a crystal structure.

(a)

Choose from the below words

Ionic

Covalent

42.

Which statement is true of ionic compounds?

a)

They are electrically neutral when dissolved in water

b)

They are good conductors as solids

c)

They are formed of metals and nonmetals bonded together

d)

They are made by sharing electrons

43.

Which of these is the correct match to form an ionic compound?

a)

b)

c)

d)

44.

In terms of element classification, why silver chloride is an ionic compound

a)

Silver is a metal and chlorine is a nonmetal.

b)

transfer of electrons

45.

Which of the following is an ionic compound:

a)

CH4

b)

I2

c)

LiBr2

d)

CO

46.

Which of the following is NOT an ionic compound:

a)

CaO

b)

NaOH

c)

BaCl₂

d)

Br₂

47.

What is the formula for the compound formed by magnesium ions and nitrogen ions?

a)

MgN

b)

Mg₂N₃

c)

Mg₃N₂

d)

MgN₃

48.

AgF

a)

silver fluoride

b)

silver fluorine

c)

monosilver monofluoride

d)

silver monofluorine

49.

The chemical formula for an ionic compound of potassium and oxygen is

a)

KO.

b)

K₂O.

c)

K₂O₂.

d)

KO₂.

50.

In an ionic compound - nonmetals _____ electrons, giving them a _____ charge. We call these types of ions _____.

a)

Lose / Negative / Cation

b)

Lose / Positive / Cation

c)

Gain / Negative / Anion

d)

Gain / Positive / Anion

51.

Categorize the following compounds as ionic or covalent.

Categorize the following

NaCl

KCl

MgO

CaCl₂

LiF

CO₂

CH₄

C₂H₆

NH₃

SiO₂

Covalent

Ionic

52.

Categorize the following compounds as ionic or covalent.

Categorize the following

NH₃

CH₄

C₆H₁₂O₆

N₂

KBr

Li₂O

BaCl₂

Al₂O₃

Na₂SO₄

IF₅

Ionic

Covalent

53.

Categorize the following compounds as ionic or covalent.

Categorize the following

Al₂O₃

BaSO₄

KI

FeCl₃

MgS

CO

NO₂

PCl₃

CS₂

N₂O₃

Covalent

Ionic

54.

How many valence electrons?

Categorize the following

magnesium

calcium

beryllium

strontium

carbon

silicon

germanium

tin

oxygen

sulfur

selenium

tellurium

neon

xenon

argon

krypton

2

4

6

8

55.

Which of the following pairs of elements is most likely to form an ionic compound?

a)

magnesium and fluorine

b)

manganese and iron

c)

oxygen and chlorine

d)

sodium and aluminum

56.

What are the electrons in the outer most level called?

a)

Outer level electrons

b)

Protons

c)

Neutrons

d)

Valence Electrons

57.

11. How many valence electrons in this structure?

a)

2

b)

7

c)

17

d)

not enough information to answer

58.

How many valence electrons does Oxygen (O) have?

a)

6

b)

8

c)

15

d)

16

59.

Which correctly defines valence electrons?

a)

electrons that participate in chemical bonding

b)

electrons located in the last energy level

c)

electrons with the highest amount of energy

d)

all of the above are correct

60.

How many valence electrons does Silicon (Si) have?

a)

6

b)

4

c)

7

d)

5

61.

How many valence electrons does nitrogen have?

a)

3

b)

2

c)

5

d)

1

62.

How many valence electrons are in Phosphorus?

a)

15

b)

4

c)

5

d)

31

63.

The number of _____ is most important in determining how an atoms will bond.

a)

Neutrons

b)

Protons

c)

Valence Electrons

d)

Electron sin the innermost shell

64.

What are valence electrons?

a)

sum of the protons and neutrons

b)

protons minus electrons

c)

electrons in the inner shells

d)

electrons in the outer shell

Ionic vs Covalent Compounds

Total questions: 64

Worksheet time: 57mins

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