Free Printable Synthesis and Decomposition Review

1.

metal chlorates decompose into

a)

metal chlorides and oxygen

b)

metal and chlorate

c)

oxygen chlorides and metal

2.

Metal carbonates decompose into

a)

metal oxides and oxygen

b)

metal oxides and carbon

c)

metal and carbonate

d)

metal oxide and carbon dioxide

3.

metal hydroxides decompose into

a)

metals and hydroxide

b)

metal oxides and water

c)

oxygen, hydrogen and a metal

d)

water and a metal

4.

Binary compounds decompose into

a)

2 elements

b)

two compounds

c)

an element and a compound

5.

Metal oxides and water produce

a)

acids

b)

metal hydroxides

c)

oxyacids

6.

two elements combine to form

a)

binary compounds

b)

acids

c)

hydroxide

7.

hydrogen reacts with sulfur to form

a)

hydrogen sulfate

b)

hydrogen sulfide

c)

hydrosulfuric acid

8.

sodium reacts with iodine to form

a)

sodium iodate

b)

sodium iodide

c)

sodium monoiodide

9.

Sodium oxide reacts with water to form

a)

sodium oxide hydrate

b)

sodium hydrogen oxide

c)

sodium hydroxide

10.

Calcium chlorate decomposes to form

a)

calcium oxide and chlorine

b)

calcium chloride and chlorine gas

c)

calcium chloride and oxygen gas

11.

magnesium carbonate decomposes to form

a)

carbonate and magnesium

b)

carbon and magnesium oxide

c)

carbon dioxide and magnesium oxide

12.

barium hydroxide decomposes to form

a)

barium hydrogen oxide

b)

barium and hydroxide

c)

barium and water

d)

barium oxide and water

13.

lithium chloride decomposes into

a)

lithium and chlorate

b)

lithium and chlorine

c)

lithium and chlorite

14.

Without balancing the final equation, predict the products for the synthesis reaction: $Li\ +\ Cl_2\ \rightarrow$ ?

a)

$LiCl_2$

b)

$LiCl_{ }$

c)

$Li_2Cl_2$

d)

$Li_2Cl_{ }$

15.

Without balancing the final equation, predict the products for the synthesis reaction: $Mg\ +\ Br_2\ \rightarrow$ ?

a)

$MgBr$

b)

$MgBr_2$

c)

$Mg_2Br$

d)

$Mg_2Br_2$

16.

Without balancing the final equation, predict the products for $Al\ +\ Cl_{2\ }\rightarrow\ ?$

a)

$Al_3Cl$

b)

$AlCl$

c)

$AlCl_3$

d)

$Al_3Cl_2$

17.

Without balancing the final equation, predict the products for the synthesis reaction: $Li\ +\ P_{ }\ \rightarrow\ ?$

a)

$Li_3P$

b)

$LiP_3$

c)

$LiP_4$

d)

$LiP$

18.

Without balancing the final equation, predict the products for the synthesis reaction: $Al\ +\ S_{ }\ \rightarrow\ ?$

a)

$AlS_8$

b)

$Al_3S_2$

c)

$Al_3S_8$

d)

$Al_2S_3$

19.

What is the final balanced equation for: $Ca\ +\ F_2\ \rightarrow\ ?$

a)

$Ca\ +\ F_2\ \rightarrow\ CaF_2$

b)

$Ca\ +\ F_2\ \rightarrow\ 2CaF_{ }$

c)

$2Ca\ +\ F_2\ \rightarrow\ 2CaF_2$

d)

$2Ca_{ }\ +\ F_2\ \rightarrow\ Ca_2F_2$

20.

What is the final balanced equation for: $Na\ +\ Br_2\ \rightarrow\ ?$

a)

$Na\ +\ Br_2\ \rightarrow\ NaBr_2$

b)

$2\ Na\ +\ Br_2\ \rightarrow\ 2\ NaBr$

c)

$Na\ +\ Br_2\ \rightarrow\ 2\ NaBr$

d)

$4\ Na\ +\ Br_2\ \rightarrow\ 2\ Na_2Br$

21.

Write the overall balanced chemical equation for the synthesis reaction: $Sr\ +\ N_2\ \rightarrow\ ?$

a)

$Sr\ +\ N_2\ \rightarrow\ SrN_2$

b)

$Sr\ +\ N_2\ \rightarrow\ Sr_3N_2$

c)

$3\ Sr\ +\ N_2\ \rightarrow\ Sr_3N_2$

d)

$2\ Sr\ +\ N_2\ \rightarrow\ 2\ SrN$

22.

A chemical change in which two or more substances react to form a new substance is a ____________________________.

a)

decomposition reaction

b)

synthesis reaction

c)

double displacement reaction

d)

combustion reaction

23.

A synthesis reaction can be represented as ________________________.

a)

AB + CD → AC + BD

b)

AB → A + B

c)

A + B → AB

d)

A + BC → B + AC

24.

Balance this equation...

H₂ + Cl₂ --> HCl

a)

It is balanced

b)

3H₂ + Cl_{2 -->}6H₂Cl

c)

H₂ + Cl₂ --> 2HCl

25.

Balance this equation...

HgO --> Hg + O₂

a)

It is balanced

b)

2HgO --> Hg + O₂

c)

2HgO --> 2Hg + O₂

26.

metal chlorates decompose into

a)

metal chlorides and oxygen

b)

metal and chlorate

c)

oxygen chlorides and metal

27.

Metal oxides and water produce

a)

acids

b)

metal hydroxides

c)

oxyacids

28.

non-metal oxides and water form

a)

hydroxides

b)

acids

c)

binary compounds

29.

two elements combine to form

a)

binary compounds

b)

acids

c)

hydroxide

30.

hydrogen reacts with sulfur to form

a)

hydrogen sulfate

b)

hydrogen sulfide

c)

hydrosulfuric acid

31.

sodium reacts with iodine to form

a)

sodium iodate

b)

sodium iodide

c)

sodium monoiodide

32.

Sodium oxide reacts with water to form

a)

sodium oxide hydrate

b)

sodium hydrogen oxide

c)

sodium hydroxide

33.

Predict the results: ZnS + O₂ -->

a)

ZnO₂ + S₂

b)

Zn₂O + S

c)

ZnO + S

34.

Predict the results: K + H₂O -->

a)

K₂OH

b)

KOH + H₂

c)

K(OH)₂

35.

Predict the results of: NaI + Br₂

a)

Na₂Br + I

b)

NaBr₂ + I

c)

NaBr + I₂

36.

Based on the activity series, what are the predicted products of this reaction?

Br₂ (l) + KI (aq) →

a)

KBr + I₂

b)

KBr + I

c)

KBr₂ + I

37.

Based on the activity series, what are the predicted products of this reaction?

Br₂ (l) + KI (aq) →

a)

KBr + I₂

b)

KBr + I

c)

KBr₂ + I

38.

Predict the product(s) of this reaction:

Mg + HCl →

a)

MgCl + H₂

b)

MgCl₂+ H₂

c)

MgCl₂ + H

39.

What will be the result of : Zn + AuCl₂->

a)

ZnCl₂ +Au

b)

ZnAu + Cl₂

c)

ClAu + Zn

40.

Predict the product(s) of this reaction (don't worry about balancing):

SrI₂ +Br₂→

a)

Sr + I₂Br₂

b)

SrBr + I₂

c)

SrBr₂ + I₂

d)

Sr + IBr₂

41.

What will be the result of the following:

Li + NaF ->

a)

Li will replace F

b)

Na will replace Li

c)

Li will replace Na

42.

Which of the following is NOT a diatomic

a)

H₂

b)

N₂

c)

P

d)

Cl₂

43.

Ca(NO₃)₂ is soluble (aq) based on which rule on the solubility chart?

a)

Rule 1

b)

Rule 2

c)

Rule 5

d)

Rule 7

44.

NiF₂ is soluble (aq) based on which rule on the solubility chart?

a)

Rule 1

b)

Rule 2

c)

Rule 3

d)

Rule 4

45.

NaOH is soluble (aq) based on which rule on the solubility chart?

a)

Rule 1

b)

Rule 3

c)

Rule 4

d)

Rule 6

46.

BaCO₃ is insoluble (s) based on which rule on the solubility chart?

a)

Rule 1

b)

Rule 2

c)

Rule 5

d)

Rule 6

47.

CaSO₄ is insoluble (s) based on which rule on the solubility chart?

a)

Rule 1

b)

Rule 2

c)

Rule 4

d)

Rule 7

48.

Solubility Rule 1 does NOT apply to which of these compounds?

a)

LiOH

b)

Mg(NO₃)₂

c)

Fe(CH₃COO)₃

d)

BaSO₄

49.

NaNO₃ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 1

b)

Insoluble (s) from Rule 1

c)

Soluble (aq) from Rule 5

d)

Insoluble (s) from Rule 2

50.

MgF₂ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 3

b)

Insoluble (s) from Rule 3

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

51.

PbF₂ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 3

b)

Insoluble (s) from Rule 3

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

52.

CuCl₂ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 2

b)

Insoluble (s) from Rule 2

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

53.

NaOH soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 6

b)

Insoluble (s) from Rule 6

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

54.

Al(OH)₃ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 6

b)

Insoluble (s) from Rule 6

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

55.

Ca(OH)₂ soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 6

b)

Insoluble (s) from Rule 6

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 1

56.

KCl soluble (aq) or insoluble (s)?

a)

Soluble (aq) from Rule 3

b)

Insoluble (s) from Rule 2

c)

Soluble (aq) from Rule 1

d)

Insoluble (s) from Rule 4

57.

What is the precipitate of this reaction?

MgCl₂ + 2 NaOH --> Mg(OH)₂ + 2 NaCl

a)

MgCl₂

b)

NaOH

c)

Mg(OH)₂

d)

NaCl

58.

What is the precipitate of this reaction?

Na₂O + NiF₂ --> 2 NaF + NiO

a)

Na₂O

b)

NiF₂

c)

NaF

d)

NiO

59.

What is a precipitate?

a)

Rain

b)

A new insoluble (solid) product that forms in a reaction

c)

The reactant that runs out first

d)

Theoretical Yield

60.

Complete the following reaction:

Hydrochloric acid + magnesium hydroxide -->

a)

Magnesium chloride + water

b)

Magnesium + water

c)

Magnesium chloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

61.

.............................. + sodium hydroxide --> sodium chloride + water

a)

Nitric acid

b)

Sulphuric acid

c)

Hydrochloric acid

d)

Ethanoic acid

62.

Which salt will e produced if copper(II) carbonate react with hydrochloric acid....

a)

Copper(II) carbonate

b)

Copper(II)chloride

c)

Water

d)

Copper chloride

63.

What gas is always produced when a metal reacts with acid?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

64.

Metal carbonates react with acid to form....

a)

Salt, carboxylic acid and water

b)

Salt, carbon dioxide and water

c)

Salt and carbonated water

d)

Salt and hydrogen

65.

Magnesium + hydrochloric acid-->

a)

Magnesium chloride + water

b)

Magnesium chloride + hydrogen

c)

Magnesium hydrochloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

66.

Zinc + sulfuric acid -->

a)

Zinc sulfide + hydrogen

b)

Zinc sulfate + hydrogen

c)

Zinc sulfate + Water +Carbon dioxide

d)

Zinc sulfide + water

67.

What are the reactants for the reaction of magnesium with oxygen

Magnesium + oxygen --> Magnesium oxide

a)

Magnesium

b)

Oxygen

c)

Magnesium oxide

d)

Magnesium and oxygen

68.

Metal carbonates react with acid to form....

a)

Salt, carboxylic acid and water

b)

Salt, carbon dioxide and water

c)

Salt and carbonated water

d)

Salt and hydrogen

69.

What gas is always produced when carbonates reacts with acids?

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

d)

Nitrogen

70.

CxHy +O₂--> H₂O + CO₂

a)

Decomposition

b)

Double replacement

c)

Combustion

d)

Single Replacement

71.

Always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water.

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

72.

The following reaction is an example of what reaction type?
CoCO₃ → CoO + CO₂

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

73.

What are the products in the following chemical equation?
2H₂ + O₂ --> 2H₂O

a)

H₂

b)

O₂

c)

2H₂ + O₂

d)

2H₂O

74.

What are always the product(s) for the combustion of a hydrocarbon?

a)

O₂

b)

Acids and Bases

c)

H₂O and CO₂

d)

H₂ and C

75.

What is the general reaction scheme for a double replacement reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

$C_xH_y+O_2\ ->\ CO_2+H_2O$

76.

What type of reaction is the following:
$C_{11}H_{24}+17O_2->\ 11CO_2\ +\ 12H_2O$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

77.

What type of reaction is the following:
$Na_2S\ +2HCl\ ->\ H_2S+2NaCl$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

Synthesis and Decomposition Review

Total questions: 77

Worksheet time: 2hrs 39mins

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