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Worksheets

Chemical Reactions

Total questions: 88

Worksheet time: 22hrs 0mins

Name
Class
Date
1.

Which is the correct chemical formula for chlorine?

a)

Cl

b)

Cl2

c)

ClO3-1

d)

ClO2-1

2.

Which of the following is NOT the correct chemical formula for the element?

a)

H2

b)

N2

c)

I

d)

F2

3.
 Li2O
a)

Dilithium monoxide

b)
Lithium oxide
c)
Lithium dioxide
4.
CsCl
a)
Monocesium monochloride
b)
Cesium monochloride
c)
Cesium Chloride
5.
MgS 
a)
Magnesium sulfide
b)
Monomagnesium monosulfide
c)
Magnesium monosulfide
6.
Na2S
a)

Disodium sulfide

Disodium sulfide

b)
Sodium sulfide
c)
Sodium monosulfide
7.
Al2S3
a)
Dialuminum Trisulfide
b)
Aluminum sulfide
8.
What is the formula for magnesium phosphide?
a)
Mg3P2
b)
Mg2P3
c)
Mg2PO3
d)
Mg3(PO3)2
9.
What is the formula for magnesium phosphide?
a)
Mg3P2
b)
Mg2P3
c)
Mg2PO3
d)
Mg3(PO3)2
10.
What is the formula for aluminum fluoride?
a)
AlF
b)
Al2F3
c)
AlF3
d)
Al3F2
11.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
12.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
13.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
14.
SiCl4
a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
15.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
16.
The name of P₄S₁₀ is
a)
phosphorous sulfide
b)
phosphorus sulfide
c)
tetraphosphorus decasulfide
d)
phosphorus (X) sulfide
17.
The chemical formula of tetraphosphorus heptaoxide is
a)
F₄O₁₀
b)
P₄O7
c)
PO
d)
P₁₀O₄
18.
The name of SO₃ compound is
a)
sulfate
b)
sulfur oxide
c)
sulfur trioxide
d)
monosulfur trioxide
19.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
20.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
21.

Name the ionic compound, CaCO3

a)

calcium carbide

b)

calcium carbon trioxide

c)

calcium carbon oxide

d)

calcium carbonate

22.

Name the ionic compound, FeBr3

a)

Iron (II) bromide

b)

Iron (III) bromide

23.
What is a transition metal?
a)
They are elements that charges vary and are represented by roman numerals during nomenclature.
b)
A type of squirrel.
c)
Elements that are not defined as metals or nonmetals.
d)
A metal with no charge.
24.
Where are the transition metals found on the periodic table?
a)
The first 5 elements
b)
The bottom two rows
c)
Group 3-12
d)
Row 3-12
25.
What is one way to recognize a transition metal?
a)
If it has a roman numeral
b)
it says that it is a transition metal
c)
you cant recognize it
d)
it has 4 elements
26.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

27.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

28.

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

a)

potassium + fluorine

b)

beryllium + oxygen

c)

boron + iodine

d)

gold + oxygen

29.

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

a)

atomic number

b)

mass number

c)

charge

d)

ionization energy

30.

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

31.

What is the name of the compound Na2(SO4)?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfuroxide

32.

What is the name of the compound Sc(OH)3?

a)

Scandium (III) hydroxide

b)

Scandium (I) hydroxide

c)

Scandium (II) hydroxide

d)

Scandium hydroxide

33.

The name of the compound Ca3(PO4)2

a)

calcium phosphate

b)

tricalcium diphosphate

c)

calcium phosphorus oxide

d)

calcium phosphide

34.
The name for CrN:
a)
Chromium nitride
b)
Chromium (I) nitride
c)
Chromium (III) nitride
d)
Chromium nitride (III)
35.
Which is the Roman Numeral for +3?
a)
I
b)
II
c)
III
d)
+III
36.
The name of Cu₃N₂ is
a)
copper (III) nitride
b)
copper (II) nitride
c)
copper nitride
d)
tricopper dinitride
37.
Identify Cessium Nitrate
a)
CsNO3
b)
Cs2(NO3)3
c)
Cs2NO3
d)
Cs3NO3
38.
Identify Gallium Sulfate
a)
GaSO4
b)
Ga2(SO4)3
c)
Ga3(SO4)2
d)
Ga2SO4
39.
What is the name of K3PO4?
a)
Tripotassium Phosphate
b)
Tripotassium Phosphite
c)
Potassium phosphide
d)
Potassium phosphate
40.
What is the name of Al(NO3)3?
a)
Aluminum trinitrate
b)
Monoaluminum nitrate
c)
Aluminum (III) nitrate
d)
Aluminum Nitrate
41.
What is the name of Mg(OH)2?
a)
Magnesium Hydride
b)
Magnesium Dihydride
c)
Magnesium Dihydroxide
d)
Magnesium Hydroxide
42.

Balance the following equation:

__ H3PO4 + __ KOH → __ K3PO4 + __ H2O

a)

1, 3, 1, 3

b)

3, 3, 1, 1

c)

3, 1, 3, 1

d)

6, 2, 6, 2

43.

Balanced the following equation:

__ K + __ B2O3 → __ K2O + __ B

a)

2, 3, 1, 6

b)

6, 1, 3, 2

c)

1, 2, 3, 6

d)

2, 6, 3, 1

44.

Balance the following equation:

__ HCl + __ NaOH __ → __NaCl + __H2O

a)

2, 2, 2, 3

b)

1, 2, 1, 2

c)

2,6,4,1

d)

1, 1, 1, 1

45.

Balance the following equation:

__ Na + __ NaNO3 → __Na2O + __N2

a)

6, 1, 2, 5

b)

10, 2, 6, 1

c)

5, 3, 1, 2

d)

20, 4, 12, 2

46.

Balance the following equation:

__ C + __ S8 → __ CS2

a)

4, 4, 1

b)

2, 2, 1

c)

4, 1, 4

d)

2, 1, 2

47.

Balance the following equation:

__ Na + __ O2 → __Na2O

a)

4, 1, 2

b)

8, 2, 4

c)

3, 2, 2

d)

1, 2, 4

48.

Balance the following equation:

__ N2 + __ O2 → __ N2O5

a)

2, 5, 2

b)

5, 2, 2

c)

4, 10, 4

d)

6, 3, 4

49.

Balance the following equation:

__ H3PO4 + __ Mg(OH)2 → __ Mg3(PO4)2 + __H2O

a)

6, 2, 1, 3

b)

4, 4, 1, 7

c)

2, 3, 1, 6

d)

1, 6, 9, 4

50.

Balance the following equation:

__ NaOH + __ H2CO3 → __ Na2CO3 + __ H2O

a)

1, 2, 1, 2

b)

4, 2, 2, 4

c)

1, 3, 1, 3

d)

2, 1, 1, 2

51.

Balance the following equation:

__ KOH + __ HBr → __ KBr + __ H2O

a)

8, 8, 2, 2

b)

1, 1, 1, 1

c)

4, 2, 2, 4

d)

2, 2, 2, 2

52.

Balance the equation:

__ Al + __ S8 → __Al2S3

a)

3, 8, 16

b)

32, 6, 16

c)

8, 16, 1

d)

16, 3, 8

53.

Balance the following equation:

__ Al(OH)2 + __ H2CO3 → __ Na2CO3 + __ H2O

a)

6, 2, 3, 1

b)

2, 3, 1, 6

c)

2, 3, 1, 6

d)

1, 6, 1, 2

54.

Balance the following equation:

__ Na + __ O2 → __Na2O

a)

2, 4, 1

b)

4, 1, 2

c)

8, 2, 4

d)

9, 1, 3

55.

Balance the following equation:

__ C10H22 + __ O2 → __ CO2 + __ H2O

a)

22, 31, 20, 2

b)

31, 20, 2, 22

c)

2, 31, 20, 22

d)

20, 22, 2, 31

56.

Balance the following equation:

__ C3H8 + __ O2 → __CO2 + __ H2O

a)

4, 1, 5, 3

b)

2, 10, 6, 8

c)

1, 5, 3, 4

d)

3, 8, 2, 2

57.

Balance the following equation:

__ Li + __ AlCl3 → __ LiCl + __ Al

a)

3, 1, 3, 1

b)

3, 3, 1, 1

c)

1, 1, 3, 3

d)

1, 3, 1, 3

58.

Balance the following equation:

__ C2H6 + __ O2 → __CO2 + __ H2O

a)

6, 4, 7, 2

b)

7, 6, 2, 4

c)

4, 6, 2, 7

d)

2, 7, 4, 6

59.

Balance the following equation:

__ Rb + __ P → __Rb3P

a)

3, 1, 1

b)

1, 3, 1

c)

1, 1, 3

d)

6, 2, 2

60.

Balance the following equation:

__ NH3 + __ O2 → __ N2 + __ H2O

a)

4, 3, 2, 6

b)

6, 2, 3, 4

c)

3, 2, 4, 6

d)

2, 6, 4, 3

61.

Balance the following reaction:

__ C + __ SO2 → __ CS2 + __ CO

a)

4, 1, 2, 5

b)

2, 4, 1, 5

c)

5, 2, 1, 4

d)

1, 4, 5, 2

62.

What is the skeleton formula for a synthesis reaction?

a)

AB 🡪 A + B

b)

A + B 🡪 AB

63.

What kind of reaction is the following?


4Fe + 3O2 → 2Fe2O3

a)

decomposition

b)

synthesis

c)

double replacement

d)

single replacement

64.

What kind of reaction is the following?


Zn + 2HCl → H2 + ZnCl2

a)

single replacement

b)

combustion

c)

synthesis

d)

double displacement

65.

What kind of reaction is the following?


CH4 + 2O2 → CO2 + 2H2O

a)

double replacement

b)

synthesis

c)

single replacement

d)

combustion

66.

What kind of reaction is the following:

2 NaCl (s) + F2 (g)--> 2 NaF (s)+ Cl2 (g)

a)

Single Replacement

b)

Double Replacement

c)

Decomposition

d)

Synthesis

67.

What kind of reaction is the following:

4 P (s) + 5 O2 (g) --> 2 P2O5 (s)

a)

Single Replacement

b)

Double Replacement

c)

Synthesis

d)

Combustion

68.

What kind of reaction is the following:

FeCl3 (s) + 3 NaOH (aq) --> Fe(OH)3 (aq) + 3 NaCl (aq)

a)

Single Replacement

b)

Double Replacement

c)

Oxidation-Reduction

d)

Synthesis

69.

What kind of reaction is the following:

2 Na (s) + 2 H2O (l) --> 2 NaOH (aq) + H2 (g)

a)

Precipitation

b)

Oxidation-Reduction

c)

Single Replacement

d)

Double Replacement

70.

What kind of reaction is the following:

2 H2O (l) + O2 (g) --> 2 H2O2 (l)

a)

Synthesis

b)

Single Replacement

c)

Double Replacement

d)

Decomposition

71.

What kind of reaction is the following:

2 Ag2O (s) --> 4 Ag (s) + O2 (g)

a)

Double Replacement

b)

Synthesis

c)

Decomposition

d)

Single Replacement

72.

What kind of reaction is the following:

2 NaBr (aq) + CaF2 (aq) --> 2 NaF (aq) + CaBr2 (aq)

a)

Decomposition

b)

Single Replacement

c)

Precipitation

d)

Double Replacement

73.

HCl (aq) + NaOH (aq) --> NaCl (aq) + H2O (l)

a)

Decomposition

b)

Double Replacement

c)

Single Replacement

d)

Synthesis

74.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
75.

How many silver (Ag) atoms are reactants in this equation?

4Ag + 3O2 → 2Ag2O

a)

4

b)

2

c)

3

d)

0

76.

What reaction has the following general formula:

AB --> A + B


a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

77.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

78.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

79.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

80.

Combustion reactions will always produce

a)

Oxygen and a solid

b)

Liquid nitrogen and heat

c)

Oxygen and heat/energy

d)

CO2 and H2O

81.

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

82.

Which phrase describes what happens to atoms in a chemical reaction?

a)

never lost or gained, just rearranged

b)

sometimes lost, never rearranged

c)

sometimes lost, gained, or rearranged

d)

lost or gained, never rearranged

83.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
84.

What type of reaction involves 2 substances combining to form 1 new compound?

a)

Decomposition Reaction

b)

Single Replacement Reaction

c)

Double Replacement Reaction

d)

Synthesis Reaction

85.

What type of reaction involves the breaking down of a substance into simpler substances?

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

86.

What type of reaction involves one element replacing another element in a compound?

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

87.

What are the reactants in the chemical equation pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

88.

What are the products of the chemical reaction pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

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