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Worksheets

Chemistry Chapter 9

Total questions: 164

Worksheet time: 3hrs 22mins

Name
Class
Date
1.

Which type of chemical reaction has the following configuration?


Substance + Substance --> Compound


A + B --> AB

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

2.

Which type of chemical reaction has the following configuration?


Element + Compound --> Element + Compound


A + BC --> B + AC

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

3.

Which type of chemical reaction has the following configuration?


Hydrocarbon + Oxygen --> Carbon Dioxide + Water


CxHy + O2 --> CO2 + H2O

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

4.

What type of chemical reaction has the following configuration?


Ionic Compound(aq) + Ionic Compound(aq) --> Compound + Compound


AB(aq) + CD(aq) --> AD + BC

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

5.

What type of chemical reaction has the following configuration?


Compound --> Substance + Substance


AB --> A + B

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

6.

What type of chemical reaction is Endothermic and needs heat/energy to take place.

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

7.

Select each compound that can be produced by combustion reactions. (more than 1 answer)

a)

Oxygen

b)

Carbon Dioxide

c)

Water

d)

Glucose

e)

Carbon

8.

Classify the following chemical reaction


BaCl2(aq) + K2CrO4(aq) --> BaCrO4(s) + 2KCl(aq)




a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

9.

Classify the following chemical reaction.


Si(s) + 2Cl2(g) --> SiCl4(l)

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

10.

Classify the follow chemical reaction.


2C6H6(l) + 15O2 --> 6H2O(l) + 12CO2(g)

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

11.

What type of chemical reaction is when a single compound is broken down into two or more products?

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

12.

What is a substance that speeds up the rate of a chemical reaction?

a)

Rate

b)

Catalyst

c)

Calorimeter

d)

Hydrocarbon

13.

Identify the type of chemical reaction pictured above

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

14.

Identify the type of chemical reaction pictured above

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

15.

Identify the type of chemical reaction picture above

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

16.

Identify the type of chemical reaction picture above

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

17.

Identify the type of chemical reaction pictured above

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

18.

Identify the type of reaction...

N2O5 +H2O >N_2O_5\ +H_2O\ ->

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

19.

Identify the type of reaction...

C4H10 + O2 >C_4H_{10}\ +\ O_2\ ->

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

20.

Identify the type of reaction...

C + O2 > CO2C\ +\ O_2\ ->\ CO_2

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

21.

Identify the type of reaction...

SnCl2 + 2Li > 2LiCl + SnSnCl_2\ +\ 2Li\ ->\ 2LiCl\ +\ Sn

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

22.

Identify the type of reaction...

(NH4)2CrO4 +2 KOH > 2NH4OH + K2CrO4\left(NH_4\right)_2CrO_4\ +2\ KOH\ ->\ 2NH_4OH\ +\ K_2CrO_4

a)

Composition

b)

Decomposition

c)

Single Replalcement

d)

Double Replacement

e)

Combustion

23.

Identify the type of reaction...

Na2CO3 + heat >Na_2CO_3\ +\ heat\ ->

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

24.

Identify the type of reaction...

MgSO4  7H2O + heat >MgSO_4\ \circ\ 7H_2O\ +\ heat\ ->

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

25.

What reaction has the following general formula:

AB --> A + B

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

26.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

27.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

28.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

29.

What reaction has the following general formula:
CxHy + O2 >CO2 + H2OC_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

30.

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)

CxHy+O2 > CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

31.

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)

CxHy+O2 > CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

32.

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)

CxHy+O2 > CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

33.

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)

CxHy+O2 > CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

34.

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)

CxHy+O2 > CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

35.

What type of reaction is the following:
2H2+O2>2H2O2H_2+O_2->2H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

36.

What type of reaction is the following:
BaCl2+2KI > 2KCl + BaI2BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

37.

What type of reaction is the following:
C11H24+17O2> 11CO2 + 12H2OC_{11}H_{24}+17O_2->\ 11CO_2\ +\ 12H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

38.

What type of reaction is the following:
2KI > 2K + I22KI\ ->\ 2K\ +\ I_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

39.

What type of reaction is the following:
2NaHCO3> Na2CO3+CO2+H2O2NaHCO_3->\ Na_2CO_3+CO_2+H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

40.

What type of reaction is the following:
Zn + 2HCl > ZnCl2+H2Zn\ +\ 2HCl\ ->\ ZnCl_2+H_2

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

41.

What type of reaction is the following:
3CuS +2Al > Al2S3+3Cu3CuS\ +2Al\ ->\ Al_2S_3+3Cu

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

42.

What type of reaction is the following:
2C4H10 +13O2 > 8CO2+10H2O2C_4H_{10}\ +13O_2\ ->\ 8CO_2+10H_2O

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

43.

What type of reaction is the following:
Na2S +2HCl > H2S+2NaClNa_2S\ +2HCl\ ->\ H_2S+2NaCl

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

44.

What type of reaction is the following:
Ag3N + 3HBr>3AgBr+H3NAg_3N\ +\ 3HBr->3AgBr+H_3N

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

45.
Breaking down a substance into simpler substances
a)
Displacement
b)
Synthesis
c)
Decomposition
d)
Oxidation
46.

Identify the following chemical reaction.

2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

47.

Identify the following chemical reaction.

3 HBr + 1 Al(OH)3 ----> 3 H­2O + 1 AlBr3

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

48.

Identify the following chemical reaction.

Pb + FeSO4 ----> PbSO4 + Fe

a)

Synthesis (or combination)

b)

Decomposition

c)

Single displacement

d)

Double displacement

49.

What reaction has the following general formula:

AB --> A + B

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

50.

What reaction has the following general formula:

A + CD --> C + AD

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

51.

What reaction has the following general formula:

AB + CD --> CB + AD

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

52.

What reaction has the following general formula:

A + B --> AB

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

53.

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

54.

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

55.

In a chemical reaction, everything to the right of the arrow are called ______________.

a)
Products
b)
Yields
c)
Molecules
d)
Reactants
56.
What type of reaction is the equation C + O→ CO2?
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
57.
What type of reaction is the equation 2NaCl →2Na +Cl2?
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
58.
Cu + 2Ag(NO3) → 2Ag + Cu(NO3)
a)
Synthesis Reaction
b)
Decomposition Reaction
c)
Single Displacement Reaction
d)
Double Displacement Reaction
59.

Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O. What type of reaction is this?

a)

Synthesis

b)

Combustion

c)

Double Replacement

d)

Decomposition

60.

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

61.

3KOH + H3PO4 --> K3PO4 + 3H2O

a)

Combination

b)

Decomposition

c)

Single replacement

d)

Double replacement

62.

2Na +S → Na2S

a)

Double Replacement

b)

Decomposition

c)

Combustion

d)

Synthesis

63.

2 NO2 ---> 2 O2 + N2

a)

Synthesis

b)

Single Replacement

c)

Decomposition

d)

Combustion

64.

What reaction has the following general formula:
CxHy + O2 >CO2 + H2OC_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

65.
CxHy +O--> H2O + CO2
a)
Decomposition
b)
Double replacement
c)
Combustion
d)
Single Replacement
66.
One element replaces another in a compound.
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
67.
This pictures simulates what type of reaction?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
68.
KOH + H3PO4 --> K3PO4 + H2O
a)
Synthesis (combination)
b)
Decomposition
c)
Single replacement
d)
Double replacement
69.

Si + S8 --> Si2S4

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

70.

Pb(NO3)2 --> PbO + NO2 + O2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Combustion

e)

Double replacement

71.
What is the left part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
72.

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

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Replacement Reaction

d)

Double Replacement Reaction

73.

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

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Replacement Reaction

d)

Double Replacement Reaction

74.

Cu + 2Ag(NO3) → 2Ag + Cu(NO3)

a)

Synthesis Reaction

b)

Decomposition Reaction

c)

Single Replacement Reaction

d)

Double Replacement Reaction

75.
Which generalized equation represents a synthesis reaction?
a)
A + BC → AC+ B
b)
A + B → AB
c)
AB → A + B
76.
Which generalized equation represents a decomposition reaction?
a)
A + BC → AC+ B
b)
A + B → AB
c)
AB → A + B
77.

Which generalized equation represents a single replacement reaction?

a)

A + BC → AC+ B

b)

A + B → AB

c)

AB → A + B

78.

2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH

a)

Synthesis (or combination)

b)

Decomposition

c)

Single replacement

d)

Double replacement

79.

CaCO3 ----> CaO + CO2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double placement

e)

Combustion

80.

MgCl2 + Li2CO3 ----> MgCO3 + 2 LiCl

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

81.

2 AgNO3 + Cu ----> Cu(NO3)2 + 2 Ag

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

82.

P4 + 3 O2 ----> 2 P2O3

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

83.
SeCl6 + O2 ----> SeO2 + 3Cl2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
84.

2 MgI2 + Mn(SO3)2 ----> 2 MgSO3 + MnI4

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

85.

2 NO2 ----> 2 O2 + N2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

86.
What type a reaction is taking place in this picture?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
87.

KOH + H3PO4 --> K3PO4 + H2O

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

88.

Pb(NO3)2 --> PbO + NO2 + O2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Combustion

89.

Which compound is formed as a precipitate in this reaction?

a)

Pb(NO3)2

b)

KI

c)

PbI2

d)

KNO3

90.
Which of the following equations demonstrates an actual chemical reaction that forms a new substance?
a)
A
b)
B
c)
C
d)
D
91.

Look at the picture of the equation provided. Which of the following indicate that a chemical reaction may be present?

a)

Precipitate formation

b)

Gas evolution

c)

Color change

d)

Changes in energy to system

92.

Look at the picture of the equation provided. Which of the following indicates that a chemical reaction may be present? (CHECK STATES OF MATTER)

a)

Gas evolution

b)

Water production

c)

Precipitate formation

d)

Changes in energy to system

93.

Look at the picture of the equation provided. Which of the following indicate that a chemical reaction may be present (CHECK ALL THAT APPLY)?

a)

Precipitate formation

b)

Gas evolution

c)

Water production

d)

Changes in energy to system

94.

In the reaction below, what evidence of chemical change do you see?

a)

Precipitate formation

b)

Gas evolution

c)

Color change

d)

Water production

95.

In the reaction provided, what evidence of chemical change do you see?

a)

Gas evolution

b)

Precipitate formation

c)

Color change

d)

Change in energy

96.

In the example provided, what evidence of a chemical change do you see?

a)

Color change

b)

Precipitate formation

c)

Water production

d)

Gas evolution

97.

According to the equation provided, which of the following is evidence that a chemical change has occurred?

a)

Color change

b)

Precipitate formation

c)

Change in energy

d)

Gas evolution

98.

Look at the picture of the equations provided. Which of the following indicate that a chemical reaction may be present?

a)

Water production

b)

Color change

c)

Gas evolution

d)

Changes in energy to system

99.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

100.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

101.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

102.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

103.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

104.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

105.

A change in which NEW substances are formed.

a)

Chemical change

b)

Physical change

106.

Which of the following is NOT an example of chemical change?

a)

Milk turning sour

b)

Burning wood

c)

Breaking a pencil

d)

Metal turning rusty

107.

Which lab experiments below describe a situation where a chemical change has occurred? Check all that apply.

a)

After adding zinc (Zn) to hydrochloric acid (HCl), a student observes bubbles forming in the solution and a thermometer registers a 10°10\degree  change in temperature.

b)

A student uses a mortar and pestle (a grinding stone) to break up large pieces of ammonium thiocyanate ( NH4SCNNH_4SCN  ) into smaller pieces.

c)

After combining Unknown A (a solid, white crystal) with Unknown B (a clear, odorless liquid), there is a strong smell produced and a thermometer registers a  15°15\degree  change in temperature.

d)

A student dissolves sugar ( C6H6O6C_6H_6O_6  ) into water ( H2OH_2O  ). The sugar crystals seem to disappear.

108.

Which of the following does NOT indicate a chemical reaction is occuring? Check all that apply.

a)

Unknown A dissolves into Unknown B

b)

Unknown A creates fizzing and bubbles when combined with Unknown B

c)

Unknown A sinks to the bottom when added to Unknown B

d)

Unknown A floats to the top when added to Unknown B

109.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

110.
Evidence of a chemical reactions is anything that shows - 
a)
a new substance has formed
b)
a solid dissolved in a liquid
c)
interaction between 2 gases
d)
a change in the state of matter
111.
One of the signs of a chemical reaction taking place is:
a)
Bubbles are produced 
b)
Reactants are not combining
c)
Products are not forming
d)
Color is not changing
112.
Which is NOT an indication of a chemical change?
a)
temperature change
b)
formation of a precipitate
c)
shape change
d)
production of light
113.
You know you a chemical reaction has occurred if 
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
114.
A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?
a)
The level of the substance in the beaker is higher after the other liquid is added.
b)
A yellow solid forms and then settles to the bottom of the beaker.
c)
Small white crystals are left behind in the flask that held the first liquid.
d)
The mass of the combined liquids is greater than either original liquid.
115.
Which of the following is an example that includes evidence of a chemical reaction?
a)
A sample of zinc is placed in water and it settles to the bottom
b)
A solid block of ice is heated and it completely melts into a liquid. 
c)
Sugar that is burned gives off an odor and turns brown and then black.
d)
A tomato is placed into a blender and chopped up into smaller pieces.
116.
A student places a piece of a potato into a container of hydrogen peroxide. One observation the student makes is that bubbles form around the potato. The presence of bubbles might indicate the formation of a new substance because bubbles - 
a)
could show that a gas is forming.
b)
always rise to the top of a liquid. 
c)
are almost always perfectly spherical.
d)
usually burst after a few minutes.
117.

A chemical reaction that transfers energy from the reactants to the surroundings is referred to as

a)

exothermic

b)

endothermic

c)

paleothetic

d)

exergonic

118.

What type of reaction has the reactant broken down into other substances?

a)

synthesis

b)

decomposition

c)

combustion

d)

single replacement

119.

What type of reaction is energy transferred from the surroundings to the reactants

a)

exothermic

b)

polyatomic

c)

endothermic

d)

polygenic

120.

What type of reaction is the this CH4 + 2O2  CO2 + 2H2OCH_4\ +\ 2O_2\ \rightarrow\ CO_2\ +\ 2H_2O  

a)

synthesis

b)

decomposition

c)

combustion

d)

double displacement

121.

What type of reaction is this 2NH3  N2 + 3H22NH_3\ \rightarrow\ N_2\ +\ 3H_2  

a)

synthesis

b)

decomposition

c)

single displacement

d)

double displacement

122.

What type of reaction is this 2NaCl + H2SO4  Na2SO4 + 2HCl2NaCl\ +\ H_2SO_4\ \rightarrow\ Na_2SO_{4\ }+\ 2HCl  

a)

synthesis

b)

decomposition

c)

combustion

d)

double displacement

123.

What type of reaction is this Fe + S  FeSFe\ +\ S\ \rightarrow\ FeS  

a)

synthesis

b)

decomposition

c)

single displacement

d)

free radical

124.

What type of reaction is this 2Li + 2H2O  2LiOH + H22Li\ +\ 2H_2O\ \rightarrow\ 2LiOH\ +\ H_2  

a)

redox

b)

decomposition

c)

single displacement

d)

combustion

125.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
126.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
127.
Which answer makes a correct statement?
a)
Physical change only changes the size.
b)
Physical change only changes the color.
c)
Physical changes begin and end with the same matter.
d)
Physical changes change the matter into something total different.
128.
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
a)
cutting a piece of paper
b)
folding a piece of paper
c)
tearing a piece of paper
d)
burning a piece of paper
129.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
130.
Which of the following DOES NOT indicate a chemical change/reaction is occurring?
a)
Color Change
b)
Formation of a Precipitate
c)
Formation of gas/bubbles
d)
State of matter change
131.
Which of the following indicates a PHYSICAL change?
a)
Change in temperature
b)
Change in shape
c)
Formation of a precipitate
d)
Change in color
132.

Which of the following is NOT an example of a physical change?

a)

crumpling paper

b)

sharpening a pencil

c)

clothes shrinking

d)

sour milk

133.

Which of the following is NOT an example of chemical change?

a)

sour milk

b)

burning wood

c)

breaking a pencil

d)

rust

134.

What does it mean when there is a physical change?

a)

Matter has change from one substance into another.

b)

Matter has change on the molecular level

c)

A new substance has been formed.

d)

Matter has changed size, shape or form.

135.
A physical change occurs when a substance _____. 
a)
breaks into individual elements
b)
becomes a new substance
c)
changes from an acid to a base
d)
changes shape, size, and form
136.
A different chemical substance is formed when _____. 
a)
water boils
b)
metal rusts
c)
ice melts
d)
rock is crushed
137.
When there's a chemical reaction, the original state of matter is changed in what way?
a)
temporarily
b)
partially
c)
permanently
d)
initially
138.
What type of change is taking place when a pond freezes in the winter? 
a)
a physical change
b)
a material change
c)
a chemical change
d)
no change
139.
Evidence of Chemical Change.
a)
New Substance 
b)
Size change
c)
State change
d)
Mixture 
140.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
141.
Which is a way that a piece of paper can go through a chemical change?
a)
fold the paper in half
b)
soak the paper in water
c)
burn the paper with fire
d)
cut the paper with scissors
142.
Which of these is an example of a new substance being formed?
a)
a nail rusting
b)
a wall being painted
c)
water changing to steam
d)
paper being folded
143.

A physical change is

a)

a change where the characteristics do not change the substance

b)

a change where the characteristics do change the substance

c)

a change where the chemistry changes

144.

A chemical change is when

a)

the chemical properties change

b)

the chemical properties do not change

c)

a change where the characteristics do not change the substance

145.
What is an example of a Chemical change?
a)
Ripped paper 
b)
boiled egg
c)
cracked egg
d)
sugar in water
146.
What characteristic defines all chemical changes?
a)
There is a change of state.
b)
Electricity is produced.
c)
A new material is formed.
d)
Bubbles are produced. 
147.
Which is a physical change?
a)
burning match 
b)
vinegar in baking soda 
c)
melting butter
d)
cooking an egg
148.
Liv lit a match and said it was a physical change. Is she correct?
a)
Yes
b)
No
149.
Jayden asked Gabe what she could do to an egg for a chemical change. Gabe answered correctly and said...
a)
You can drop the egg.
b)
You can cook the egg.
c)
You can crack the egg.
d)
You can paint the egg.
150.
Which of the following is a chemical property of water?
a)
Reacts with pure sodium.
b)
Boils at 100 oC.
c)
Dissolves sugar easily. 
d)
Has a density of 1 gm/mL
151.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
152.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
153.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
154.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
155.
When you break a cracker into pieces it is a 
a)
Chemical change
b)
Physical change
156.
Which of the following does the discoloration of a coin  describe?
a)
Chemical Change
b)
Physical Change
c)
None of the above
d)
Both
157.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
158.
Green bananas turning yellow on their own as they ripen.
a)
Chemical Change
b)
Physical Change
159.
What happens when water freezes?
a)
ice is formed; chemical property
b)
cold water is formed; physical change
c)
ice is formed; physical change
d)
cold water is formed; chemical change
160.
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
a)
evaporation; chemical change
b)
condensation; physical change 
c)
evaporation; physical change
d)
condensation; chemical change
161.
Which of the following would be a physical change?
a)
slicing bread
b)
baking bread
c)
baking a cake
d)
rotting food
162.
Which of the following is an example of a chemical change?
a)
melting chocolate
b)
crushing a soda can
c)
cutting paper
d)
wood burning
163.
The diagram below shows changes happening to water in a specially shaped bottle.
What changes did the water undergo?
a)
melting and then freezing
b)
freezing and then evaporation
c)
condensation and then melting
d)
evaporation and then condensation
164.
A group of students investigated physical and chemical changes using paper.  The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4