Free Printable Chemistry Grade 11 Final 2025

1.

This image shows the bonding between Lithium and Fluorine. What does the red arrow show?

a)

electrons being shared

b)

electrons being transferred to Fluorine

c)

electrons being transferred to Lithium

d)

electrons being destroyed

2.

An ionic bond is the attraction between: (Select ALL that apply)

a)

oppositely charged ions

b)

similarly charged ions

c)

metals and nonmetals

d)

neutral atoms

e)

cations and anions

3.

When ionic compounds form what is the overall charge?

a)

neutral

b)

positive

c)

negative

4.

What is responsible for bringing cations and anions together?

a)

the size of the ions

b)

the opposite charges are attracted to one another

c)

the similar charges are attracted to one another

d)

depends on what period they're in

5.

An ionic bond forms when

a)

Valence electrons are shared

b)

a sea of mobile electrons surround the cations

c)

valence electrons are transferred between atoms

d)

none of the above

6.

What is another name of an ionic compound

a)

salt

b)

cation

c)

anion

d)

polyatomic ion

7.

Which of the following is NOT a step in forming an ionic bond?

a)

One atom shares its electrons with another one

b)

Opposite charged ions form due to the transfer of electrons

c)

One atom gives electrons to another one

d)

Oppositely charged ions attract

8.

Which of the following is the correct formula for these two ions: Al⁺³ & S^-2

a)

AlS₃

b)

Al₂S₃

c)

Al₃S₂

d)

Al₃S

9.

If I had a cation with a charge of ²⁺ how would you describe the formation of that ion?

a)

gained 2 electrons

b)

lost 2 electrons

c)

gained 4 electrons

d)

lost 4 electrons

10.

If I had an anion with a charge of ^3- how would you describe the formation of that ion?

a)

gained 2 electrons

b)

lost 2 electrons

c)

gained 3 electrons

d)

lost 3 electrons

11.

Looking at the periodic table, when the alkali metals form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

12.

Looking at the periodic table, when the alkaline earth metals form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

13.

Looking at the periodic table, when the halogens form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

14.

Nitrogen, N, will form which of the following ions?

a)

N

b)

N^-3

c)

N^-5

d)

N⁺⁵

15.

In the compound aluminum oxide, which is the cation?

a)

[ Al ] ⁺³

b)

Al

c)

[ O ] ^-2

d)

O

16.

Which is the correct name for CaBr₂?

a)

Calcium Bromine

b)

Bromine Calcium

c)

Calcium Bromide

d)

Bromine Chloride

e)

Calcium Bromate

17.

What is the name for CsBr?

a)

Cesium Bromide

b)

Calcium Bromine

c)

Calcium Bromide

d)

Cesium Bromine

e)

Bromine Ceside

18.

Which of the following is the correct formula for Potassium Sulfide

a)

K₂S

b)

KS₂

c)

K₃S

d)

K₂S₃

19.

When assigning ionic charge it is always written as a...

a)

superscript

b)

subscript

c)

coefficient

d)

script

20.

Which of the following could NOT form an ionic compound? Check all that apply.

a)

Li⁺ and Cl^-

b)

F^- and O^2-

c)

Ba²⁺ and Ag⁺

d)

Mg²⁺ and S^2-

21.

Which of the following best describes an ionic bond?

a)

A) A bond formed by the sharing of electrons between atoms

b)

B) A bond formed by the transfer of electrons from one atom to another

c)

C) A bond formed by the sharing of protons between atoms

d)

D) A bond formed by the transfer of protons from one atom to another

22.

What is the result when a sodium atom loses an electron?

a)

A) It becomes a negatively charged ion

b)

B) It becomes a positively charged ion

c)

C) It becomes a neutral atom

d)

D) It becomes a molecule

23.

Which of the following compounds is formed by ionic bonding?

a)

A) $\text{H}_2\text{O}$

b)

B) $\text{CO}_2$

c)

C) $\text{NaCl}$

d)

D) $\text{CH}_4$

24.

In an experiment, a student observes that a compound dissolves in water and conducts electricity. What type of bond is likely present in the compound?

a)

A) Covalent bond

b)

B) Metallic bond

c)

C) Ionic bond

d)

D) Hydrogen bond

25.

Which of the following statements is true about the formation of ionic bonds?

a)

A) Ionic bonds form between two metals

b)

B) Ionic bonds form between a metal and a nonmetal

c)

C) Ionic bonds form between two nonmetals

d)

D) Ionic bonds form between two noble gases

26.

Chemical bonding occurs when...

a)

Atoms fall in love

b)

Atoms come together to form molecules

c)

Atoms become BFFs

d)

Chemicals explode

27.

What is the charge on an Aluminium ion?

a)

3

b)

+3

c)

+2

d)

+1

28.

What is the charge on a chloride ion?

a)

-1

b)

1

c)

+2

d)

+1

29.

How many valence electrons does calcium have?

a)

2

b)

4

c)

6

d)

7

30.

Ionic bonds form between metals and ____.

a)

metalloids

b)

metals

c)

nonmetals

31.

What type of bond is this? Lithium with Fluorine?

a)

ionic

b)

covalent

32.

What type of elements will form an ionic bond?

a)

Metals + Metals

b)

Nonmetals + Nonmetals

c)

Metals + Nonmetals

d)

None of the above

33.

The force of attraction that holds together positive and negative ions is a(an):

a)

ionic compound

b)

ionic bond

c)

electrolyte

d)

crystal

34.

1.22 Why are ions charged particles?

a)

The number of electrons does not equal the number of protons.

b)

The number of protons does not equal the number of neutrons.

c)

The number of neutrons does not equal the number of electrons.

d)

The electric charges of the electrons and protons cancel each other out.

35.

1.21 These usually lose electrons and form positive ions.

a)

halogens

b)

metalloids

c)

metals

d)

nonmetals

36.

Sodium and Bromine will make a _____ bond.

a)

ionic

b)

covalent

c)

metallic

37.

Generally, atoms form bonds so that _______________.

a)

Each atom loses its electrons

b)

Each atom has a stable electron configuration

c)

Each atom has an unstable electron configuration

d)

Each atom gains electrons

38.

Generally high melting & boiling points

a)

Ionic compounds

b)

Covalent compounds

39.

Always a solid at room temperature

a)

Ionic compounds

b)

Covalent compounds

40.

Valence electrons are transferred

a)

Ionic bonds

b)

Covalent bonds

41.

MgO

a)

ionic

b)

covalent

c)

metallic

42.

Ionic bonds form between

a)

A metal & a nonmetal

b)

2 metals

c)

2 nonmetals

43.

A cation has a __________ charge

a)

positive

b)

negative

c)

neutral

44.

A cation is formed by:

a)

losing electrons

b)

gaining electrons

c)

losing protons

d)

gaining protons

45.

An anion has a _________ charge

a)

positive

b)

negative

c)

neutral

46.

An anion is formed by

a)

losing electrons

b)

gaining electrons

c)

losing protons

d)

gaining protons

47.

In an ionic bond electrons are

a)

shared EQUALLY

b)

shared UNEQUALLY

c)

transferred

48.

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

a)

Carbon and Oxygen

b)

Sodium and Chlorine

c)

Hydrogen and Nitrogen

d)

Silicon and Sulfur

49.

What is the primary characteristic of ionic compounds in terms of electrical conductivity?

a)

They conduct electricity in solid state

b)

They do not conduct electricity in any state

c)

They conduct electricity when dissolved in water

d)

They conduct electricity only at high temperatures

50.

In the formation of an ionic bond, what happens to the valence electrons of the metal atom?

a)

They are shared equally with the non-metal atom

b)

They are transferred to the non-metal atom

c)

They remain unchanged

d)

They are shared unequally with the non-metal atom

51.

What is this called?

a)

anion change

b)

ion charge change

c)

Criss-cross method

d)

cation change

52.

What is this called?

a)

anion change

b)

ion charge change

c)

Criss-cross method

d)

cation change

53.

What is the criss-cross method used for in chemistry?

a)

To balance chemical equations

b)

To determine the formula of ionic compounds

c)

To predict the shape of molecules

d)

To calculate molar mass

54.

Using the criss-cross method, what is the formula for a compound formed between aluminum (Al) and oxygen (O)?

a)

$\text{AlO}$

b)

$\text{Al}_2\text{O}_3$

c)

$\text{Al}_3\text{O}_2$

d)

$\text{Al}_2\text{O}$

55.

Which of the following steps is involved in the criss-cross method for writing chemical formulas?

a)

Balancing the charges of ions

b)

Swapping the charges of ions

c)

Adding subscripts to balance mass

d)

Using coefficients to balance atoms

56.

What is the charge on the sulfate ion used in the criss-cross method?

a)

+1

b)

-1

c)

-2

d)

+2

57.

Using the criss-cross method, what is the formula for a compound formed between calcium (Ca) and nitrate (NO3)?

a)

$\text{CaNO}_3$

b)

$\text{Ca}_2\text{(NO}_3)_2$

c)

$\text{Ca(NO}_3)_2$

d)

$\text{Ca}_3\text{(NO}_3)_2$

58.

In the criss-cross method, what happens if the resulting subscripts are the same for both elements?

a)

The subscripts are reduced to their simplest form

b)

The subscripts are doubled

c)

The subscripts are left unchanged

d)

The compound is considered unstable

59.

Using the criss-cross method, what is the formula for a compound formed between magnesium (Mg) and chloride (Cl)?

a)

$\text{MgCl}$

b)

$\text{Mg}_2\text{Cl}_3$

c)

$\text{MgCl}_2$

d)

$\text{Mg}_3\text{Cl}_2$

60.

Which of the following compounds can be correctly written using the criss-cross method?

a)

$\text{Na}_2\text{O}$

b)

$\text{NaO}_2$

c)

$\text{Na}_2\text{O}_2$

d)

$\text{NaO}$

61.

Using the criss-cross method, what is the formula for a compound formed between iron (III) (Fe) and sulfate (SO4)?

a)

$\text{Fe}_2\text{(SO}_4)_3$

b)

$\text{Fe}_3\text{(SO}_4)_2$

c)

$\text{FeSO}_4$

d)

$\text{Fe}_2\text{SO}_4$

62.

What is the primary purpose of the criss-cross method in chemistry?

a)

To determine the solubility of compounds

b)

To predict the color of compounds

c)

To write the correct formula for ionic compounds

d)

To calculate the density of compounds

63.

Using the criss-cross method, what is the formula for a compound formed between potassium (K) and phosphate (PO4)?

a)

$\text{K}_3\text{PO}_4$

b)

$\text{KPO}_4$

c)

$\text{K}_2\text{PO}_4$

d)

$\text{K}_3\text{(PO}_4)_2$

64.

In the criss-cross method, what is the significance of the charges on ions?

a)

They determine the color of the compound

b)

They are used to balance the equation

c)

They are used to determine the subscripts in the formula

d)

They indicate the state of matter

65.

Using the criss-cross method, what is the formula for a compound formed between barium (Ba) and carbonate (CO3)?

a)

$\text{BaCO}_3$

b)

$\text{Ba}_2\text{(CO}_3)_2$

c)

$\text{Ba}_2\text{CO}_3$

d)

$\text{Ba}_3\text{(CO}_3)_2$

66.

Which of the following is a limitation of the criss-cross method?

a)

It cannot be used for covalent compounds

b)

It requires knowledge of molecular geometry

c)

It is only applicable to organic compounds

d)

It cannot predict the physical state of compounds

67.

What is the rule for the Criss Cross method?

a)

The charge of the anion is the amount on anions needed in a formula

b)

The charge of the cation is the amount of cations needed in a formula

c)

The charge of one ion is the amount you need of the other ion

d)

None of these are correct

68.

What is the Criss Cross method used for in chemistry?

a)

Balancing chemical equations

b)

Determining molecular geometry

c)

Writing chemical formulas for ionic compounds

d)

Predicting reaction rates

69.

In the Criss Cross method, what do you do with the charges of ions?

a)

Add them together

b)

Subtract them

c)

Cross them over to become subscripts

d)

Ignore them

70.

Which of the following compounds can be written using the Criss Cross method?

a)

$\text{H}_2\text{O}$

b)

$\text{NaCl}$

c)

$\text{CaCl}_2$

d)

$\text{C}_6\text{H}_{12}\text{O}_6$

71.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Al}^{3+}$ and $\text{O}^{2-}$ ?

a)

$\text{AlO}$

b)

$\text{Al}_2\text{O}_3$

c)

$\text{Al}_3\text{O}_2$

d)

$\text{Al}_2\text{O}_2$

72.

What is the first step in the Criss Cross method?

a)

Write the symbols of the elements

b)

Determine the charges of the ions

c)

Balance the equation

d)

Predict the product

73.

Which of the following is a correct application of the Criss Cross method?

a)

$\text{Mg}^{2+}$ and $\text{Cl}^{-}$ form $\text{MgCl}$

b)

$\text{Na}^{+}$ and $\text{S}^{2-}$ form $\text{Na}_2\text{S}$

c)

$\text{K}^{+}$ and $\text{O}^{2-}$ form $\text{KO}_2$

d)

$\text{Ca}^{2+}$ and $\text{N}^{3-}$ form $\text{Ca}_3\text{N}_2$

74.

What is the purpose of the Criss Cross method in writing chemical formulas?

a)

To balance chemical equations

b)

To determine the number of atoms in a molecule

c)

To ensure the compound is electrically neutral

d)

To predict the physical state of a compound

75.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Fe}^{3+}$ and $\text{S}^{2-}$ ?

a)

$\text{FeS}$

b)

$\text{Fe}_2\text{S}_3$

c)

$\text{Fe}_3\text{S}_2$

d)

$\text{Fe}_3\text{S}_3$

76.

Which ions would you use the Criss Cross method for?

a)

Covalent compounds

b)

Ionic compounds

c)

Metallic compounds

d)

All of the above

77.

What is the result of applying the Criss Cross method to $\text{Ba}^{2+}$ and $\text{N}^{3-}$ ?

a)

$\text{Ba}_2\text{N}_3$

b)

$\text{Ba}_3\text{N}_2$

c)

$\text{BaN}$

d)

$\text{Ba}_3\text{N}_3$

78.

In the Criss Cross method, what happens if the charges are the same?

a)

They are added

b)

They are subtracted

c)

They cancel each other out

d)

They are multiplied

79.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Pb}^{4+}$ and $\text{O}^{2-}$ ?

a)

$\text{PbO}_2$

b)

$\text{Pb}_2\text{O}_4$

c)

$\text{Pb}_4\text{O}_2$

d)

$\text{Pb}_2\text{O}_2$

80.

What is the Criss Cross method primarily used for?

a)

Naming compounds

b)

Writing chemical formulas

c)

Balancing equations

d)

Predicting reactions

81.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Cu}^{2+}$ and $\text{Cl}^{-}$ ?

a)

$\text{CuCl}_2$

b)

$\text{Cu}_2\text{Cl}$

c)

$\text{CuCl}$

d)

$\text{Cu}_2\text{Cl}_2$

82.

What is the correct formula for a compound formed between $\text{Zn}^{2+}$ and $\text{S}^{2-}$ using the Criss Cross method?

a)

$\text{Zn}_2\text{S}_2$

b)

$\text{ZnS}$

c)

$\text{Zn}_2\text{S}$

d)

$\text{Zn}_3\text{S}_2$

83.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Ag}^{+}$ and $\text{NO}_3^{-}$ ?

a)

$\text{AgNO}_3$

b)

$\text{Ag}_2\text{NO}_3$

c)

$\text{AgNO}_2$

d)

$\text{Ag}_3\text{NO}_3$

84.

What is the result of applying the Criss Cross method to $\text{Ca}^{2+}$ and $\text{PO}_4^{3-}$ ?

a)

$\text{Ca}_3\text{(PO}_4\text{)}_2$

b)

$\text{Ca}_2\text{(PO}_4\text{)}_3$

c)

$\text{CaPO}_4$

d)

$\text{Ca}_3\text{PO}_4$

85.

Using the Criss Cross method, what is the formula for a compound formed between $\text{NH}_4^{+}$ and $\text{SO}_4^{2-}$ ?

a)

$\text{(NH}_4\text{)}_2\text{SO}_4$

b)

$\text{NH}_4\text{SO}_4$

c)

$\text{NH}_4\text{(SO}_4\text{)}_2$

d)

$\text{(NH}_4\text{)}_2\text{(SO}_4\text{)}_2$

86.

What is the Criss Cross method used for in ionic bonding?

a)

To determine bond angles

b)

To find the empirical formula

c)

To balance charges

d)

To predict solubility

87.

Using the Criss Cross method, what is the formula for a compound formed between $\text{K}^{+}$ and $\text{CO}_3^{2-}$ ?

a)

$\text{K}_2\text{CO}_3$

b)

$\text{KCO}_3$

c)

$\text{K}_3\text{CO}_3$

d)

$\text{K}_2\text{(CO}_3\text{)}_2$

88.

What is the result of applying the Criss Cross method to $\text{Li}^{+}$ and $\text{O}^{2-}$ ?

a)

$\text{Li}_2\text{O}$

b)

$\text{LiO}_2$

c)

$\text{Li}_2\text{O}_2$

d)

$\text{LiO}$

89.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Sr}^{2+}$ and $\text{Br}^{-}$ ?

a)

$\text{SrBr}_2$

b)

$\text{Sr}_2\text{Br}$

c)

$\text{Sr}_2\text{Br}_2$

d)

$\text{SrBr}$

90.

What is the result of applying the Criss Cross method to $\text{Al}^{3+}$ and $\text{S}^{2-}$ ?

a)

$\text{Al}_2\text{S}_3$

b)

$\text{Al}_3\text{S}_2$

c)

$\text{AlS}$

d)

$\text{Al}_3\text{S}_3$

91.

Using the Criss Cross method, what is the formula for a compound formed between $\text{Ni}^{2+}$ and $\text{OH}^{-}$ ?

a)

$\text{Ni(OH)}_2$

b)

$\text{NiOH}$

c)

$\text{Ni}_2\text{OH}$

d)

$\text{Ni}_2\text{(OH)}_2$

92.

Choose the 3 particles that make up an atom

a)

Proton

b)

Neutron

c)

Electron

d)

Matter

93.

What are valence electrons?

a)

Electrons in the innermost orbital

b)

Atoms that are on the outside

c)

The particles that are all around the nucleus

d)

Electrons in the outermost orbital

94.

Which particle is involved with bonding?

a)

Proton

b)

Neutron

c)

Electron

d)

None of these

95.

What is an atom?

a)

The smallest unit of mater that makes up a chemical element

b)

A positive or negative atom

c)

A negatively charged particle on the outermost orbital of an atom

d)

Holds the protons and neutrons in the center

96.

Which particle can I remove from an atom without changing an atom's charge?

a)

Proton

b)

Neutron

c)

Electron

d)

None of these

97.

Choose the 2 types of elements that will form an ionic compound

a)

Non-metal

b)

Metal

c)

Metalloid

d)

None of these

98.

Which method do you use to find the chemical formula of ionic compounds?

a)

Criss-cross method

b)

Connect-the-dots method

c)

Prefix method

d)

None of these

99.

Name this compound: KBr

(hint: this is an ionic compound. Name the first chemical normally and the second ending with -ide).

a)

Potassium bromine

b)

monopotassium monobromide

c)

potassium monobromide

d)

Potassium bromide

100.

Name this compound: Ca₃N₂

(hint: this is an ionic compound. Name the first chemical normally and the second ending with -ide).

(a)

101.

What is the chemical formula for potassium sulfide?

(hint: this is an ionic compound, use the criss-cross method)

a)

KS

b)

K₁S₂

c)

KS₂

d)

K₂S

102.

List the 4 steps of the criss-cross method

4 lines

103.

Which types of elements will bond to form a covalent compound?

a)

Non-metals

b)

Metals

c)

Metalloids

d)

None of these

104.

How do you name a covalent compound?

a)

Exactly like how you'd name an ionic compound

b)

Both chemicals are named normally

c)

Exactly like how you'd name an ionic compound but with prefixes too

d)

You are not allowed to name a covalent compound

105.

What is the chemical formula for a carbon atom bonding to 4 hydrogen atoms?

(a)

106.

What is the name for NH₃?

Prefixes: mono-1, di-2, tri-3

(hint: the first chemical NEVER uses 'mono')

a)

mononitride trihydride

b)

nitrogen hydride

c)

nitrogen trihydride

d)

You can't name a covalent compound

107.

What is the purpose of the connect-the-dots method?

a)

For fun

b)

For ionic bonding

c)

For both covalent and ionic bonding

d)

To show how bonding happens and to write the chemical formula for covalent compounds

108.

What is a reactant?

a)

Chemical(s) you start with before a chemical reaction (on the left side of the arrow)

b)

Chemical(s) that you end with after a chemical reaction (on the right side of the arrow)

109.

What is a product?

a)

Chemical(s) you start with before a chemical reaction (on the left side of the arrow)

b)

Chemical(s) that you end with after a chemical reaction (on the right side of the arrow)

110.

Choose the correct types of chemical reactions

a)

Decomposition reaction

b)

Single replacement

c)

Bubbling

d)

Synthesis

e)

Combustion

111.

Choose the 2 chemical reactions that are synthesis reactions.

a)

H₂CO₃ --> H₂O + CO₂

b)

Na + Cl₂ --> NaCl

c)

KBr + Ag --> AgCl₃ + K

d)

Br₂ + H₂ --> HBr

112.

Identify which of these reactions are decomposition reactions

a)

CaCO₃ --> CaO + CO₂

b)

Ca(OH)₂ + HCl --> CaCl₂ + H₂O

c)

PbO₂ --> Pb + O₂

Chemistry Grade 11 Final 2025

Total questions: 112

Worksheet time: 2hrs 45mins

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