Free Printable Chemical Reaction Review (Chapter 11)

1.

What reaction has the following general formula:

AB --> A + B

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

2.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

3.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

4.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

5.

What is the general reaction scheme for a combination/synthesis reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

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

6.

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)

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

7.

What is the general reaction scheme for a decomposition reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

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

8.

What type of reaction is the following:
$2H_2+O_2->2H_2O$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

9.

What type of reaction is the following:
$BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

10.

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

11.

What type of reaction is the following:
$2KI\ ->\ 2K\ +\ I_2$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

12.

What type of reaction is the following:
$2NaHCO_3->\ Na_2CO_3+CO_2+H_2O$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

13.

What type of reaction is the following:
$Zn\ +\ 2HCl\ ->\ ZnCl_2+H_2$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

14.

What type of reaction is the following:
$3CuS\ +2Al\ ->\ Al_2S_3+3Cu$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

15.

What type of reaction is the following:
$2C_4H_{10}\ +13O_2\ ->\ 8CO_2+10H_2O$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

16.

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

17.

What type of reaction is the following:
$Ag_3N\ +\ 3HBr->3AgBr+H_3N$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

18.

__Na + O₂ -----> __Na₂O
Type of reaction?
Balance it too. :)

a)

Synthesis, 2Na / 4Na₂O

b)

Decomposition, 4Na / 2Na₂O

c)

Synthesis, 4Na / 2Na₂O

d)

Decomposition, 2Na / 4Na₂O

19.

4Si + S₈ --> 2Si₂S₄

a)

Synthesis

b)

Decomposition

c)

Single displacement

d)

Double displacement

20.

3Ca + 2AlCl₃ --> 3CaCl₂+2Al

a)

Synthesis

b)

Decomposition

c)

Single diplacement

d)

Double displacement

21.

In the following reaction, what sign is there that a precipitation reaction took place?
AgNO₃ (aq) + NaOH (aq) → AgOH (s) + NaNO₃ (aq)

a)

The formation of a nitrate

b)

The (aq), meaning aqueous or dissolved in water

c)

The (s), meaning the formation of a solid

d)

The base (OH) reactant

22.

What is (aq) mean in a chemical equation?

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

23.

What is (s) mean in a chemical equation?

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

24.

What is (g) mean in a chemical equation?

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

25.

What is (l) mean in a chemical equation?

a)

solid

b)

liquid

c)

gas

d)

aqueous solution

26.

To be a neutralization reaction, a reaction MUST

a)

At least contain an acid

b)

At least contain a base

c)

Produce CO₂

d)

React an acid with a base, and produce water

27.

The Law of Conservation of Matter states that the total mass of the reactants should be

a)

More than the mass of the products

b)

Equal to the mass of the products

c)

Ignored during the reaction

d)

Less than the mass of the products

28.

The percentage of copper and oxygen in samples of “CuO” obtained by different methods were found to be the same. This illustrates the law of:

a)

Constant proportions

b)

Conservation of mass

c)

Multiple proportions

d)

Reciprocal proportions

29.

Which one of the following pair of substances illustrates law of multiple proportions?

a)

Calcium oxide and calcium hydroxide

b)

Sodium chloride and sodium bromide

c)

Carbon monoxide and carbon dioxide

d)

None of the above

30.

A balanced chemical equation is in accordance with:

a)

Avogadro's law

b)

Law of conservation of mass

c)

Law of multiple proportions

d)

Law of reciprocal proportions

31.

Which of these is NOT a sign of a chemical reaction?

a)

A gas is given off

b)

The material dissolves

c)

Heat is released

d)

A color change occurs

32.

In a balanced chemical equation, the mass of the reactant is equal to the

a)

atoms in a molecule.

b)

atomic mass of the elements.

c)

volume of the reactacts.

d)

mass of the products.

33.

What happens in a chemical reaction?

a)

Atoms are destroyed.

b)

Atoms are created.

c)

Atoms are rearranged.

d)

Atoms gain/lose atomic mass.

34.

Which of the following is NOT a "Tell-Tell" evidence of a possible chemical reaction?

a)

formation of a gas

b)

state of matter change

c)

formation of a solid

d)

color change

e)

temperature change

35.

A chemical equation is balanced when the

a)

coefficients of the reactants equal the coefficients of the products.

b)

same number of each kind of atom appears in the reactants and in the products.

c)

products and reactants are the same chemicals.

d)

subscripts of the reactants equal the subscripts of the products.

36.

What types of reactions absorb and release heat?

a)

acidic and basic

b)

endothermic and exothermic

c)

endothermic and heat transfusion

d)

covalent and ionic

37.

A scientist combines chemicals and produces an exothermic reaction. What byproduct of this reaction would show that it is exothermic?

a)

heat

b)

coolness

c)

a precipitate

d)

gas bubbles

38.

A chemical reaction that absorbs heat

a)

Single replacement

b)

Exothermic

c)

Endothermic

d)

Decomposition

39.

a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat

a)

Endothermic Reaction

b)

Exothermic Reaction

c)

Diffusion

d)

Fission

40.

the symbolic representation of a chemical reaction

a)

Long Hand

b)

Short Hand

c)

Electron Configuration

d)

Chemical Equation

41.

A solid that is deposited from a solution

a)

Solid

b)

Liquid

c)

Product

d)

Precipitate

42.

Which of the following models best demonstrates a balanced chemical equation?

a)

F

b)

G

c)

H

d)

J

43.

What type of reaction does this graphic represent?

a)

Decomposition

b)

Double-replacment

c)

Single-replacment

d)

Synthesis

44.

What type of reaction does this graphic represent?

a)

Decomposition

b)

Double-replacement

c)

Single-replacment

d)

Synthesis

45.

What type of reaction does this graphic represent?

a)

Decomposition

b)

Double-replacment

c)

Single-replacement

d)

Synthesis

46.

What type of reaction does this graphic represent?

a)

Decomposition

b)

Double-replacment

c)

Single-replacment

d)

Synthesis

47.

Substance that changes the rate of a chemical reaction without being consumed in the reaction

a)

bonding

b)

catalyst

c)

chemical reaction

d)

activation energy

48.

This changes the mechanism of the reaction. This also changes the nature (and energy) of the transition state.

a)

catalyst

b)

activation site

c)

activation energy

d)

catalyst

49.

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

50.

The red numbers in the image below represent ________

a)

subscripts

b)

coefficients

c)

I don't know, and don't want to try

d)

None of the answers are correct

51.

Two clear colorless solutions were combined.
The student observed that the temperature changed from 25 •C to 23 •C when the solutions were combined and that a white substance rapidly formed and settled to the bottom of the container. What most likely happened to produce these results?

a)

One of the original compounds came out of solution

b)

The solutions reacted chemically

c)

Some of the water froze into ice crystals

d)

Rapid evaporation of water occurred, leaving a solid

52.

If an element is diatomic it should have a subscript of___

a)

1, always

b)

2, only when it is an element

c)

it shouldn't have a subscript, it should have a coefficent

d)

2, when bonded in a compound

53.

What is the charge of Iron in this compound. (Hint: think swap drop method):

Fe₃(PO₄)₂

a)

3+

b)

2+

c)

1+

d)

6+

54.

Fill in the blank. (Copper has a charge of 2+)

Cu+ AgNO₃→ Ag + _____

a)

Cu(NO₃)₂

b)

CuNO₃

c)

CuAg

d)

Cu

55.

Predict the products of this synthesis reaction: H₂ + Cl₂ →

a)

HCl

b)

H₂Cl₂

c)

H₂Cl

d)

HCl₂

56.

Predict the products for the this Single Replacement reaction:

K + HCl →

a)

KCl + H₂

b)

KHCl

c)

KH + Cl₂

d)

HCl + K₂

57.

Predict the products for the this Double Replacement reaction:

AgNO₃ + KCl →

a)

AgCl + KNO₃

b)

AgK + ClNO₃

c)

KAg + NO₃Cl

d)

AgCl + 3 KNO

58.

Complete the balanced equation for this Double Replacement reaction.

3 NaOH + Fe(NO₃)₃ →

a)

NaFe + OH(NO₃)₃

b)

NaNO₃ + Fe(OH)₃

c)

3 NaNO₃ + Fe(OH)₃

d)

3 NaFe + 3 (OH)NO₃

59.

Predict the product of this synthesis reaction:

Al + S₈ →

a)

AlS

b)

AlS₈

c)

Al₂S

d)

Al₂S₃

60.

Predict the products for the decomposition of aluminum oxide, Al₂O₃ →

a)

Al + O₂

b)

O + Al₂

c)

Al₂+ O₃

d)

Al + O

61.

Which of the following salts is insoluble?

a)

Aluminium chloride

b)

Copper (II) Sulfate

c)

Sodium chloride

d)

Calcium carbonate

62.

KNO₃

a)

Soluble

b)

Insoluble

63.

AgCl

a)

Soluble

b)

Insoluble

64.

KCl

a)

Soluble

b)

Insoluble

65.

AgNO₃

a)

Soluble

b)

Insoluble

66.

(NH₄)₂SO₄

a)

Soluble

b)

Insoluble

67.

CaSO₄

a)

Soluble

b)

Insoluble

68.

Na₂O

a)

Soluble

b)

Insoluble

69.

In a combustion reaction, one of the reactants is ____.

a)

carbon

b)

oxygen

c)

hydrogen

d)

nitrogen

70.

Ions in two compounds switch.

a)

Synthesis

b)

Combustion

c)

Single Replacement

d)

Double Replacement

Chemical Reaction Review (Chapter 11)

Total questions: 70

Worksheet time: 2hrs 32mins

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