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Formulas of Ionic Compounds

Total questions: 54

Worksheet time: 31mins

Name
Class
Date
1.

Fe +2  and  SO4 -2

a)
FeSO4
b)
Fe4(SO4)2
c)
FeSO2
d)
correct answer is not given
2.

What ionic compound is formed from the following ions?

SO4 -2  and  Al +3

a)

(SO4)3Al2

b)

(SO4)2Al3

c)

Al3SO4

d)

Al2(SO4)3

3.

What is the formula for the compound that forms when sodium bonds with carbonate?

a)

NaCO3

b)

Na3(CO3)2

c)

Na2(CO)3

d)

Na2CO3

4.

Identify the ions in calcium sulfate.

a)

Ca2+, SO42-

b)

Ca, SO4

c)

Ca+, SO4-

d)

Ca2+, SO4-

5.

What is the formula for manganese(III) oxide?

a)

MgO

b)

MnO

c)

Mg2O3

d)

Mn2O3

6.

What is the correct formula for the compound, lithium oxide?

a)

LiO

b)

LiO2

c)

Li2O

d)

Li2O2

7.

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

8.

What is the correct formula for magnesium oxide?

a)

MgO

b)

MgO2

c)

Mg2O2

d)

Mg2O

9.

What is the correct name for the compound PbO?

a)

lead oxide

b)

lead (I) oxide

c)

lead (II) oxide

d)

lead hydroxide

10.

What is the correct chemical formula for ammonium carbonate?

a)

(NH4)2(CO3)2

b)

(NH4)2CO3

c)

NH4(CO3)2

d)

NH4CO3

11.

Select the formula for aluminum sulfide

a)

Al2(SO4)3

b)

AlS

c)

Al2S3

d)

Al3(SO3)2

e)

AlSO3

12.

Which of the following compounds contains the Mn3+ ion?

a)

MnS

b)

Mn2O3

c)

MnBr2

d)

MnO

13.

The formula for potassium permanganate is

a)

KMnO

b)

KMnO2

c)

KMnO4

d)

K2MnO2

14.

What is the correct chemical formula for iron (III) hydroxide?

a)

Fe(OH)3

b)

Fe2(OH)3

c)

Fe3(OH)2

d)

Fe3OH

15.

NaClO is named

a)

sodium chlorite

b)

sodium hypochlorite

c)

sodium chlorate

d)

sodium hypochlorate

e)

sodium chloride oxide

16.

Will bromine form a positive ion or a negative ion? How can you tell?

4 lines
17.

What is the formula for zinc nitrate?

a)

ZnNO3

b)

Zn(NO)2

c)

ZnN

d)

Zn(NO3)2

18.

What are the ions in sodium chloride?

a)

Na, Cl

b)

Na+, Cl-

c)

Naˉ, Cl+

d)

Na2, Cl2

19.

What is the correct formula for gallium hydroxide?

a)

Ga(OH)3

b)

Gl3O

c)

Ga3O2

d)

Gl(OH)2

e)

Ga(HO)2

20.

What will a calcium atom do to become more stable?

4 lines
21.

What is the charge of the chromium in chromium (III) phosphate?

a)

2-

b)

3+

c)

2+

d)

3-

e)

4+

22.

What type of elements form ionic compounds?

a)

metal + metal

b)

metal + nonmetal

c)

nonmetal + nonmetal

d)

metal + metalloid

e)

metalloid + nonmetal

23.

What is the formula for chromium (III) phosphate?

a)

CrPO3

b)

Cr2(PO4)3

c)

Cr2PO4

d)

CrPO4

e)

Cr3(PO3)4

24.

A group of covalently bonded atoms that acts together as one charged atom is a____.

a)

crystal

b)

molecule

c)

negative ion

d)

polyatomic ion

25.

In which of the following are the symbol and name for the ion given correctly?

a)

ammonium: NH41+;

carbonate: CO32–

b)

nitride: N3+;

nitrate: NO31–

c)

hydroxide: OH1+;

oxide: O2–

d)

phosphate: PO33–;

sulfate: SO32–

26.

Select the name of Na2CO3

a)

Sodium carbonate

b)

Disodium carbonate

c)

Disodium carbon trioxide

d)

Sodium carbon trioxide

e)

Sodium carbonite

27.

Which of the following elements will likely form a negative ion in its ionic compounds?

a)

Li, lithium

b)

Al, aluminum

c)

Mg, magnesium

d)

Cl, chlorine

28.

Select the name of K3P

a)

Krypton phosphorous

b)

Potassium phosphide

c)

Trikrypton phosphide

d)

Trikrypton phosphorous

e)

Potassium phosphorous

29.

Select the name of LiNO3

a)

Lithium nitrogen trioxide

b)

Lithium nitride

c)

Lithium nitrite

d)

Lithium nitrogen oxygen

e)

Lithium nitrate

30.

Ionic bonds involve

a)

Attraction between water and salts

b)

Electrostatic interactions between anions and cations

c)

The release of protons by negatively charged particles

d)

The sharing of electrons between two atoms of the same element

31.

Which formula correctly represents the compound copper (I) sulfate?

a)

Cu2SO4

b)

CuSO4

c)

Cu(SO4)2

d)

CuS

32.

What is the correct name for Pb(NO3)4?

a)

lead nitrate

b)

lead (IV) nitride

c)

lead nitrate (IV)

d)

lead (IV) nitrate

33.

Calcium and Oxygen create...

a)

CaO

b)

OCa

c)

Ca2O2

d)

CaO2

34.

Select the name of (NH4)3N

a)

Tetrahydrogen nitride nitrogen

b)

Tetranitrogen didecahydrogen

c)

Triaminonitride

d)

Ammonium nitride

e)

Ammonium nitrate

35.

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

36.

How do the following two elements bond together? Al3+  O2-         

a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
37.

What is the correct name for the compound CoCl2?

a)

cobalt (I) chlorate

b)

cobalt (I) chloride

c)

copper (II) chloride

d)

cobalt (II) chloride

38.

When naming ionic compounds with many transition metals you need to include roman numerals to show the _____ of the metal

a)

atomic number

b)

charge

c)

mass number

d)

ionization energy

39.

How many hydrogen atoms are in (NH4)2SO4?

a)

4

b)

6

c)

8

d)

10

40.

what is the name of a binary compound made up of lithium and chlorine?

a)

Lithium Chlorine

b)

Chlorine Lithium

c)

Lithium Chloride

d)

Chlorate Lithium

41.

How many valence electrons are nonmetals trying to have to become more stable?

a)

5

b)

6

c)

7

d)

8

42.

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

43.

In chemical formulas, the number of atoms in a unit of the compound is shown by numbers called____.

a)

oxidation numbers

b)

superscripts

c)

hydrates

d)

subscripts

44.

What is the chemical formula for the compound between Lithium and Iodine (Li & I)

a)

LiILiI  

b)

Li2ILi_2I  

c)

LiI2LiI_2  

d)

Li2I2Li_2I_2  

45.

An atom represented by Χ forms a compound with the formula ΧCO3. The atom could be:

a)

Mg

b)

Cl

c)

Al

d)

Na

46.

Plaster of Paris is calcium sulfate. What is the formula of calcium sulfate?

a)

CaSO2

b)

CaSO3

c)

CaSO4

d)

Ca2SO4

e)

Ca(SO4)2

47.

The chemical formula of Iron (III) bromide is

a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
48.

Which of the following correctly represents an ion pair and the ionic compound the ions form?

a)

Ca2+, F–; CaF2

b)

Na–, Cl+; NaCl

c)

Ba2+, O2–; Ba2O2

d)

Pb4+, O2–; Pb2O4

49.

The first step in naming an ionic compound is always...

a)

Naming the anion (non-metal)

b)

Naming the cation (metal)

c)

Changing the ending to -ide

d)

Writing the cation charge

50.

Select the formula for strontium chloride

a)

SrCl2

b)

SrCl

c)

Sr2Cl3

d)

SrClO2

e)

SrClO3

51.

Which best describes a stable binary ionic compound?

a)

Two ions with the same charges and a net charge of -1

b)

Two ions with opposite charges and a net charge of +1

c)

Two ions with the same charges and a net charge of 0

d)

Two ions with opposite charges and a net charge of 0

52.

Which formula is correctly paired with its name?

a)

AgNO3 - silver nitrate

b)

KI - potassium (I) iodide

c)

PbSO4 - lead sulfate

d)

CuSO4 - copper (II) sulfide

53.

Which of the following compounds contains the tin (IV) ion?

a)

SnSO4

b)

SnO2

c)

Sn(NO3)2

d)

SnCO3

54.

Which of the following is NOT an anion?

a)

sulfate

b)

nitride

c)

hydroxide

d)

ammonium ion

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