Free Printable Chemical Reaction Types

1.

Combining substances to form a new substance

a)

Displacement

b)

Synthesis

c)

Decomposition

d)

Oxidation

2.

Breaking down a substance into simpler substances

a)

Displacement

b)

Synthesis

c)

Decomposition

d)

Oxidation

3.

What type of reaction is the equation C + O₂→ CO₂?

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

4.

What type of reaction is the equation 2NaCl →2Na +Cl₂?

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

5.

Cu + 2Ag(NO₃) → 2Ag + Cu(NO₃)

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

6.

Ca₃(PO₄)2 + 3 H₂SO₄ + 3 CaSO₄ + 2 H₃(PO₄)

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Displacement Reaction

d)

Double Displacement Reaction

7.

Which of the following is an example of a chemical change?

a)

melting a stick of butter

b)

dissolving salt in water

c)

using magnesium to displace hydrogen gas from water

8.

Consider the chemical equation CH₄ + 2 O₂ → CO₂ + 2 H₂O. In this equation, CH₄ is a

a)

product

b)

reactant

c)

displacement

9.

Consider the equation 4 Fe+3 O₂ → 2 Fe₂O₃ . In this equation, 3 O₂ is a

a)

product

b)

reactant

c)

compound

10.

Which generalized equation represents a synthesis reaction?

a)

A + BC → AC+ B

b)

A + B → AB

c)

AB → A + B

11.

Which generalized equation represents a decomposition reaction?

a)

A + BC → AC+ B

b)

A + B → AB

c)

AB → A + B

12.

Which generalized equation represents a single displacement reaction?

a)

A + BC → AC+ B

b)

A + B → AB

c)

AB → A + B

13.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

14.

What reaction has the following general formula:

AB --> A + B

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

15.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

16.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

17.

What reaction has the following general formula:
$C_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O$

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

18.

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

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

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

19.

What is the general reaction scheme for a combustion reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

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

20.

What is the general reaction scheme for a combination reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

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

21.

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)

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

22.

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)

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

23.

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

24.

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

25.

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

26.

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

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

27.

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

28.

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

29.

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

30.

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

31.

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

32.

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

33.

CxHy +O₂--> H₂O + CO₂

a)

Decomposition

b)

Double replacement

c)

Combustion

d)

Single Replacement

34.

One reactant into several products.

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

35.

One element replaces another in a compound.

a)

Synthesis

b)

Combustion

c)

Single Replacement

d)

Double Replacement

36.

This pictures simulates what type of reaction?

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

37.

KOH + H₃PO₄ --> K₃PO₄+H₂O

a)

Synthesis (combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

38.

Si + S₈ --> Si₂S₄

a)

Synthesis (combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

39.

Pb(NO₃)₂ --> PbO + NO₂ + O₂

a)

Synthesis (combination)

b)

Decomposition

c)

Single replacement

d)

Combustion

40.

What is the left part of a chemical equation called?
H_{2 +}O → H₂O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

41.

3 Pb + 2 H₃PO₄ ----> 3 H₂ + 1 Pb₃(PO₄)₂

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

42.

Combustion reactions will always involve

a)

Oxygen and a solid

b)

Liquid nitrogen and heat

c)

Oxygen and heat/energy

d)

CO and H₂O

43.

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

a)

Decomposition

b)

Synthesis

c)

Combustion

d)

Single Replacement

44.

What type a reaction is taking place in this picture?

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

45.

What does (aq) mean in a chemical reaction?

a)

Ag

b)

silver

c)

aqualirious

d)

aqueous

46.

When balancing equations what does
-->
mean?

a)

subscript

b)

equals

c)

it is just an arrow

d)

yield

47.

What is the left part of a chemical equation called?
H_{2 +}O → H₂O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

48.

What is the right part of a chemical equation called?
H_{2 +}O → H₂O

a)

Reactants

b)

Products

c)

Yields

d)

Chemical Equation

49.

The reactants are on the left side of the chemical equation.

a)

True

b)

False

50.

What are products?

a)

The chemicals that start the reaction.

b)

The chemicals that the reaction produced.

c)

The chemicals that are on the left side of the arrow.

51.

The products are on the right side of the chemical equation.

a)

True

b)

False

52.

What is the type of reaction shown above?

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

53.

Identify the reaction type:

NaCl + KOH --> KCl + NaOH

a)

Double replacement

b)

Combustion

c)

Synthesis

d)

Decomposition

54.

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

55.

CaCO₃ represents a chemical

a)

Symbol

b)

Formula

c)

Subscript

d)

Reaction

56.

Which of the following is a chemical change?

a)

water freezes to form ice

b)

sugar dissolves in water

c)

gasoline burns in a car engine

d)

a piece of metal expands when it is heated

57.

Increasing the concentration of a reactant in a chemical reaction will _____________.

a)

decrease the rate of the reaction

b)

stop the reaction from happening

c)

increase the rate of the reaction

d)

have no effect on the rate of the reacion

58.

Which of the following represents a chemical change?

a)

cutting a piece of paper with scissors

b)

cooling a mixture of air and kerosene vapor to obtain liquid kerosene

c)

burning a piece of notebook paper in the presence of oxygen

d)

heating water over a flame to its boiling point

59.

Raising the temperature of a chemical reaction would make the reaction __________________.

a)

happen slower

b)

happen faster

c)

stop completely

d)

proceed as normal

60.

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

a)

Decomposition Reaction

b)

Single Displacement Reaction

c)

Double Displacement Reaction

d)

Synthesis Reaction

61.

The right side of the equation below is called the

a)

products

b)

reactants

62.

Matter and mass can not be

a)

Shaken or stirred

b)

Made

c)

created or destroyed

d)

Transferred

63.

The Law of Conservation of Mass 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

64.

Which is the name of the kind of solid substance formed in this figure?

a)

aqueous

b)

precipitate

c)

acid

d)

synthesis

65.

Provides evidence that a chemical reaction has occurred.

a)

dissolving

b)

melting

c)

formation of a gas

d)

bending

66.

Potassium iodide is a catalyst in a chemical reaction where would this be placed when writing the chemical reaction?

a)

product side

b)

reactant side

c)

above the arrow

d)

left out

67.

Which of these is NOT a sign that a chemical change has occurred?

a)

A loss of transparency

b)

An unexpected color change

c)

A temperature change

d)

The formation of a precipitate

68.

Some chemical reactions require a substance called a catalyst. The purpose of a catalyst is

a)

to warm up the reaction

b)

to speed up the reaction

c)

to create more reactants

d)

to stop the reaction

69.

Which of the following is a common sign that a chemical change has occurred?

a)

A chemical has turned a different color, bubbled, and/or changed temperature.

b)

A chemical has changed to a different state of matter, such as a liquid to a solid.

c)

A chemical has changed size.

d)

A chemical has become a different shape.

70.

A Precipitate forms

a)

when a gas is bubble through a liquid

b)

a lighter taper causes a gas to burn

c)

in a liquid or gas after a reaction and causes cloudiness (caused by a solid forming)

Chemical Reaction Types

Total questions: 70

Worksheet time: 1hrs 20mins

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