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Ionic Compound Names and Formulas Practice

Total questions: 65

Worksheet time: 5hrs 1mins

Name
Class
Date
1.

What is the correct formula for potassium oxide?

a)

KO2

b)

KO

c)

K2O

d)

OK2

2.

What is the correct name for SrF2?

a)

fluoride strontium

b)

strontium fluorine

c)

strontium diflluoride

d)

strontium fluoride

3.

What is the correct name for Zn(CN)2?

a)

zinc cyanide

b)

zinc dicyanide

c)

zinc carbide

d)

zinc(I) cyanide

4.

What is the correct name for (NH4)2CO3?

a)

diammonium carbonate

b)

nitrogen hydrogen carbon oxide

c)

ammonium carbonate

d)

ammonium carbide

5.

What is the correct name for Al2(SO4)3?

a)

aluminum(II) sulfate

b)

dialuminum trisulfate

c)

aluminum sulfide

d)

aluminum sulfate

6.
Sliver Phosphide
a)
Ag3P
b)
Ag3PO4
c)
Ag3PO3
d)
AgP
7.
Magnesium ion would take a charge of
a)
1+
b)
2+
c)
3+
d)
0
8.
A(n) _________ is an ion with a positive (+) charge.
a)
anion
b)
cation
c)
ion
d)
solute
9.

What is the ionic compound formed between Li and N?

a)

Li3N

b)

Li2N2

c)

Li3N2

d)

LiN3

10.
What is the ionic compound formed between Ca and Br?
a)
CaBr
b)
CaBr2
c)
Ca2Br
d)
Ca2Br
11.

A(n) _________ is an ion with a negative (-) charge.

a)

anion

b)

cation

c)

ion

d)

solute

12.
What formula results when Ca+2  and  Br-1 ions bond?
a)
Ca2Br2
b)
CaBr
c)
Ca2Br
d)
CaBr2
13.
What formula results when Li+1  and NO3-1 ions bond?
a)
LiNO3
b)
Li(NO3)2
c)
NO3Li
d)
NOLi3
14.
What formula results when Al+3 and O-2 ions bond?
a)
Al3O2
b)
Al2O3
c)
AlO
d)
AlO3
15.
What formula results when Mg+2  and SO4-2 ions bond?
a)
MgSO4
b)
Mg2(SO4)2
c)
Mg2SO4
d)
Mg(SO4)2
16.
What formula results when Be+2  and OH- ions bond?
a)
Be2OH
b)
BeOH2
c)
Be(OH)2
d)
BeO2H
17.

What is the name for the chemical formula KF?

a)
Potassium fluoride
b)
Potassium fluorine
c)
Fluorine potasside 
d)
Potassium fluorate
18.

What is the name for the chemical formula Na2SO4 ?

a)
Sodium Sulfate 
b)
Sodium Sulfur Oxide 
c)
Sodium Sulfide Oxide
d)
Sodium Sulfide 
19.
What is the name for the chemical formula Na2S?
a)
Sodium Sulfide
b)
Sodium Sulfate
c)
Sodium Sulfite
d)
Disodium Sulfide
20.
What is the formula for Magnesium Chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
21.
The chemical formula of Calcium Hydroxide is
a)
CaOH₂
b)
Ca(OH)₂
c)
Ca(OH)
d)
CaH₂
22.
What is the formula for Lithium Oxide?
a)
LiO
b)
LiO2
c)
Li2O
d)
Li2O3
23.
Write the formula for Barium Nitride?
a)
Ba2N3
b)
Ba3N2
c)
BaN
d)
BaN3
24.

How do you write the formula for Sodium Chloride?

a)

NACL

b)

NaCl

c)

nacl

d)

KI

25.

How should you read the formula LiF?

a)

Lithiide Fluorine

b)

Lithium Fluorium

c)

Lithium Fluoride

d)

Lithium Phosphine

26.

How do you read the formula CaO?

a)

Calcium Oxide

b)

Potassium Oxide

c)

Calcium Oxygen

d)

Calcium Oxidate

27.

What happens to valence electrons in ionic bonding?

a)

The metal loses valence electrons to the nonmetal

b)

The metal and nonmetal share electrons equally

c)

The nonmetal loses valence electrons to the metal

d)

Both the metal and nonmetal lose electrons

28.

How many valence electrons does Aluminum have?

a)

1

b)

2

c)

3

d)

4

29.

How many Oxygen atoms should bond with one Magnesium atom?

a)

1

b)

2

c)

3

d)

4

30.

How many Chlorine atoms should bond with one Aluminum atom?

a)

1

b)

2

c)

3

d)

4

31.
When an atom loses an electron, it becomes a:
a)
positive ion
b)
negative ion
c)
neutral ion
d)
neutral atom
32.
An ionic bond is the attraction between:
a)
oppositely charged ions
b)
similarly charged ions
c)
neutral ions
d)
neutral atoms
33.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
34.
What is the chemical name for the compound with the formula Na₂S?
a)
sodium sulfide
b)
sodium fluoride
c)
magnesium sulfide
d)
lithium oxide
35.
In the chemical formula for an ionic compound, which item is written first?
a)
positive ion
b)
negative ion
c)
subscript
d)
the female
36.
When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is:
a)
0
b)
1+
c)
1-
d)
37
37.
Alkali metal elements will tend to become an ion with a charge of _____
a)
1+
b)
1-
c)
2+
d)
2-
38.
What is the formula of Sodium oxide?
a)
Na2O
b)
NaO2
c)
Na2O2
d)
Na2O
39.

When naming a transition metal, the numerical value of the charge is indicated by a …

a)

prefix

b)

suffix

c)

roman numeral following the name

d)

superscript after the name

40.
An ionic compound made of copper (Cu2+) and oxygen would be named
a)
copper oxygen.
b)
copper oxide.
c)
dicopper oxide.
d)
copper(II) oxide.
41.

What is the correct name for this formula?

a)

lead(IV) iodide

b)

lead iodide

c)

lead iodine

d)

lead(I) iodide

42.

What is the correct name for this compound?

a)

fluorine chlorine

b)

iron chloride

c)

iron(II) chloride

d)

iron(I) chloride

43.

Why do transition metals get different rules for their names and formulas?

a)

atoms are larger

b)

cations have many different charges

c)

they have more protons

d)

they are rare elements

44.
What is the chemical name for Fe(NO3)3?
a)
Iron (III) Nitrate
b)
Iron (III) Nitride
c)
Iron (II) Nitrate
d)
Iron (III) Nitride
45.

What is the chemical formula for potassium and nitrogen?

a)

KN

b)

KN3

c)

K3N3

d)

K3N

46.

Write the formula for barium + nitrogen

a)

Ba2N3

b)

Ba3N2

c)

BaN

d)

BaN3

47.
The polyatomic ion:  SO42- has the name
a)
Phosphate
b)
Sulfate
c)
Sulfite
d)
Sulfur tetra oxide
48.
Which of the following combination is incorrect?
a)
phosphate  PO43-                 

b)
sulfite  SO32-                 
c)
nitrite    NO3-   
d)
iron(II)    Fe2+                   
49.

What is the chemical formula for calcium permanganate?

a)

CaMnO4

b)

Ca3(MnO4)2

c)

Ca(MnO4)2

d)

CaMn

50.

What is the name for KNO2?

a)

potassium(I) nitrite

b)

potassium nitrogen dioxide

c)

potassium dinitrite

d)

potassium nitrite

51.

What is the name for (NH4)3PO4?

a)

phosphate

b)

ammonium phosphate

c)

ammonium triphosphate

d)

triammonium phosphate

52.

What is the name for Mg(C2H3O2)2?

a)

magnesium(II) acetate

b)

magnesium acetate

c)

magnesium diacetate

d)

magnesium acetide

53.

What is the name for Pb(CO3)2?

a)

lead(IV) carbonate

b)

lead(II) carbonate

c)

lead carbonate

d)

lead carbonite

54.

Roman numerals are needed in the compound name _____________.

a)

always

b)

only when the cation has more than one possible charge.

c)

to match the subscript of the metal

d)

for all metals

55.

Ionic bonds are formed between...

a)

Non - metals

b)

A metal and a non-metal

c)

Metals

56.

Which of the below is an ionic compounds?

a)

Ni

b)

MgCl2

c)

H2O

d)

CH4

57.

How is an ionic bond formed?

a)

Sharing of electrons

b)

Delocalised electrons

c)

Transfer of electrons

58.

What properties does an ionic compound have?

a)

A low boiling point and it conducts electricity when dissolved in water

b)

A high melting point and it conducts electricity when molten or dissolved

c)

A high boiling point and it conducts electricity when solid

59.

When naming a compound, what must the last part be?

a)

the element with "ide" at the end

b)

the element with the ending "ite"

c)

the name of the element

d)

the element with "ide" at the end, unless its a polyatomic ion

60.

Which of the following combinations would need roman numerals in the name?

a)

boron + iodine

b)

potassium + fluorine

c)

beryllium + oxygen

d)

iron + oxygen

e)

sodium + chlorine

61.

From the following ionic compounds, choose the name-formula pair that is NOT correctly matched.

a)

sodium sulfide Na2S

b)

ammonium nitrate

NH4NO3

c)

sodium sulfate

Na2SO3

d)

calcium oxide CaO

62.

Which of the following is NOT an ionic compound?

a)

CaO

b)

NaOH

c)

BaCl2

d)

CO2

63.

Ammonium nitrate is used as a fertilizer and as an explosive. What is the formula of ammonium nitrate?

a)

NH3NO2

b)

NH3NO3

c)

NH4NO2

d)

NH4NO3

64.

Identify the ions in calcium sulfate.

a)

Ca2+, SO42-

b)

Ca, SO4

c)

Ca+, SO4-

d)

Ca2+, SO4-

65.

A phosphorus atom needs to gain ___ electrons to achieve a full octet.

a)

3

b)

4

c)

6

d)

5

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