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WorksheetsChemistry Chapter 9
Total questions: 164
Worksheet time: 3hrs 22mins
Which type of chemical reaction has the following configuration?
Substance + Substance --> Compound
A + B --> AB
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Which type of chemical reaction has the following configuration?
Element + Compound --> Element + Compound
A + BC --> B + AC
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Which type of chemical reaction has the following configuration?
Hydrocarbon + Oxygen --> Carbon Dioxide + Water
CxHy + O2 --> CO2 + H2O
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What type of chemical reaction has the following configuration?
Ionic Compound(aq) + Ionic Compound(aq) --> Compound + Compound
AB(aq) + CD(aq) --> AD + BC
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What type of chemical reaction has the following configuration?
Compound --> Substance + Substance
AB --> A + B
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What type of chemical reaction is Endothermic and needs heat/energy to take place.
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Select each compound that can be produced by combustion reactions. (more than 1 answer)
Oxygen
Carbon Dioxide
Water
Glucose
Carbon
Classify the following chemical reaction
BaCl2(aq) + K2CrO4(aq) --> BaCrO4(s) + 2KCl(aq)
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Classify the following chemical reaction.
Si(s) + 2Cl2(g) --> SiCl4(l)
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Classify the follow chemical reaction.
2C6H6(l) + 15O2 --> 6H2O(l) + 12CO2(g)
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What type of chemical reaction is when a single compound is broken down into two or more products?
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What is a substance that speeds up the rate of a chemical reaction?
Rate
Catalyst
Calorimeter
Hydrocarbon
Identify the type of chemical reaction pictured above
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of chemical reaction pictured above
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of chemical reaction picture above
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of chemical reaction picture above
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of chemical reaction pictured above
Composition/Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
N2O5 +H2O −>
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
C4H10 + O2 −>
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
C + O2 −> CO2
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
SnCl2 + 2Li −> 2LiCl + Sn
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
(NH4)2CrO4 +2 KOH −> 2NH4OH + K2CrO4
Composition
Decomposition
Single Replalcement
Double Replacement
Combustion
Identify the type of reaction...
Na2CO3 + heat −>
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the type of reaction...
MgSO4 ∘ 7H2O + heat −>
Composition
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
AB --> A + B
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
A + CD --> C + AD
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
AB + CD --> CB + AD
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
A + B --> AB
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
CxHy + O2 −>CO2 + H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What is the general reaction scheme for a single replacement reaction?
A + B --> AB
AB --> A + B
A + CD --> C + AD
AB + CD --> CB + AD
CxHy+O2 −> CO2+H2O
What is the general reaction scheme for a combustion reaction?
A + B --> AB
AB --> A + B
A + CD --> C + AD
AB + CD --> CB + AD
CxHy+O2 −> CO2+H2O
What is the general reaction scheme for a combination reaction?
A + B --> AB
AB --> A + B
A + CD --> C + AD
AB + CD --> CB + AD
CxHy+O2 −> CO2+H2O
What is the general reaction scheme for a double replacement reaction?
A + B --> AB
AB --> A + B
A + CD --> C + AD
AB + CD --> CB + AD
CxHy+O2 −> CO2+H2O
What is the general reaction scheme for a decomposition reaction?
A + B --> AB
AB --> A + B
A + CD --> C + AD
AB + CD --> CB + AD
CxHy+O2 −> CO2+H2O
What type of reaction is the following:
2H2+O2−>2H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
BaCl2+2KI −> 2KCl + BaI2
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
C11H24+17O2−> 11CO2 + 12H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
2KI −> 2K + I2
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
2NaHCO3−> Na2CO3+CO2+H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
Zn + 2HCl −> ZnCl2+H2
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
3CuS +2Al −> Al2S3+3Cu
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
2C4H10 +13O2 −> 8CO2+10H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
Na2S +2HCl −> H2S+2NaCl
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
What type of reaction is the following:
Ag3N + 3HBr−>3AgBr+H3N
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
Identify the following chemical reaction.
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
Identify the following chemical reaction.
3 HBr + 1 Al(OH)3 ----> 3 H2O + 1 AlBr3
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
Identify the following chemical reaction.
Pb + FeSO4 ----> PbSO4 + Fe
Synthesis (or combination)
Decomposition
Single displacement
Double displacement
What reaction has the following general formula:
AB --> A + B
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
A + CD --> C + AD
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
AB + CD --> CB + AD
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
What reaction has the following general formula:
A + B --> AB
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?
Decomposition
Synthesis
Combustion
Single Replacement
Which phrase describes what happens to atoms in a chemical reaction?
never lost or gained, just rearranged
sometimes lost, never rearranged
sometimes lost, gained, or rearranged
lost or gained, never rearranged
In a chemical reaction, everything to the right of the arrow are called ______________.
Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O. What type of reaction is this?
Synthesis
Combustion
Double Replacement
Decomposition
What are the reactants in the chemical equation pictured?
CH4 and CO2
CH4 and O2
CO2 and H2O
O2 and H2O
3KOH + H3PO4 --> K3PO4 + 3H2O
Combination
Decomposition
Single replacement
Double replacement
2Na +S → Na2S
Double Replacement
Decomposition
Combustion
Synthesis
2 NO2 ---> 2 O2 + N2
Synthesis
Single Replacement
Decomposition
Combustion
What reaction has the following general formula:
CxHy + O2 −>CO2 + H2O
Combination
Decomposition
Single Replacement
Double Replacement
Combustion
Si + S8 --> Si2S4
Synthesis
Decomposition
Single replacement
Double replacement
Pb(NO3)2 --> PbO + NO2 + O2
Synthesis
Decomposition
Single replacement
Combustion
Double replacement
H2 + O → H2O
What type of reaction is the equation C + O2 → CO2?
Synthesis Reaction
Decomposition Reaction
Single Replacement Reaction
Double Replacement Reaction
What type of reaction is the equation 2NaCl →2Na +Cl2?
Synthesis Reaction
Decomposition Reaction
Single Replacement Reaction
Double Replacement Reaction
Cu + 2Ag(NO3) → 2Ag + Cu(NO3)
Synthesis Reaction
Decomposition Reaction
Single Replacement Reaction
Double Replacement Reaction
Which generalized equation represents a single replacement reaction?
A + BC → AC+ B
A + B → AB
AB → A + B
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
Synthesis (or combination)
Decomposition
Single replacement
Double replacement
CaCO3 ----> CaO + CO2
Synthesis
Decomposition
Single replacement
Double placement
Combustion
MgCl2 + Li2CO3 ----> MgCO3 + 2 LiCl
Synthesis
Decomposition
Single replacement
Double replacement
2 AgNO3 + Cu ----> Cu(NO3)2 + 2 Ag
Synthesis
Decomposition
Single replacement
Double replacement
P4 + 3 O2 ----> 2 P2O3
Synthesis
Decomposition
Single replacement
Double replacement
Combustion
2 MgI2 + Mn(SO3)2 ----> 2 MgSO3 + MnI4
Synthesis
Decomposition
Single replacement
Double replacement
2 NO2 ----> 2 O2 + N2
Synthesis
Decomposition
Single replacement
Double replacement
Combustion
KOH + H3PO4 --> K3PO4 + H2O
Synthesis
Decomposition
Single replacement
Double replacement
Pb(NO3)2 --> PbO + NO2 + O2
Synthesis
Decomposition
Single replacement
Combustion
Which compound is formed as a precipitate in this reaction?
Pb(NO3)2
KI
PbI2
KNO3
Look at the picture of the equation provided. Which of the following indicate that a chemical reaction may be present?
Precipitate formation
Gas evolution
Color change
Changes in energy to system
Look at the picture of the equation provided. Which of the following indicates that a chemical reaction may be present? (CHECK STATES OF MATTER)
Gas evolution
Water production
Precipitate formation
Changes in energy to system
Look at the picture of the equation provided. Which of the following indicate that a chemical reaction may be present (CHECK ALL THAT APPLY)?
Precipitate formation
Gas evolution
Water production
Changes in energy to system
In the reaction below, what evidence of chemical change do you see?
Precipitate formation
Gas evolution
Color change
Water production
In the reaction provided, what evidence of chemical change do you see?
Gas evolution
Precipitate formation
Color change
Change in energy
In the example provided, what evidence of a chemical change do you see?
Color change
Precipitate formation
Water production
Gas evolution
According to the equation provided, which of the following is evidence that a chemical change has occurred?
Color change
Precipitate formation
Change in energy
Gas evolution
Look at the picture of the equations provided. Which of the following indicate that a chemical reaction may be present?
Water production
Color change
Gas evolution
Changes in energy to system
A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?
Physical change
Chemical change
No change
Is this an example of a physical or chemical change?
Physical
Chemical
Is this an example of a physical or chemical change?
Physical
Chemical
Is this an example of a physical or chemical change?
Physical
Chemical
Is this an example of a physical or chemical change?
Physical
Chemical
Is this an example of a physical or chemical change?
Physical
Chemical
A change in which NEW substances are formed.
Chemical change
Physical change
Which of the following is NOT an example of chemical change?
Milk turning sour
Burning wood
Breaking a pencil
Metal turning rusty
Which lab experiments below describe a situation where a chemical change has occurred? Check all that apply.
After adding zinc (Zn) to hydrochloric acid (HCl), a student observes bubbles forming in the solution and a thermometer registers a 10° change in temperature.
A student uses a mortar and pestle (a grinding stone) to break up large pieces of ammonium thiocyanate ( NH4SCN ) into smaller pieces.
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° change in temperature.
A student dissolves sugar ( C6H6O6 ) into water ( H2O ). The sugar crystals seem to disappear.
Which of the following does NOT indicate a chemical reaction is occuring? Check all that apply.
Unknown A dissolves into Unknown B
Unknown A creates fizzing and bubbles when combined with Unknown B
Unknown A sinks to the bottom when added to Unknown B
Unknown A floats to the top when added to Unknown B
Is this an example of a physical or chemical change?
physical
chemical
A chemical reaction that transfers energy from the reactants to the surroundings is referred to as
exothermic
endothermic
paleothetic
exergonic
What type of reaction has the reactant broken down into other substances?
synthesis
decomposition
combustion
single replacement
What type of reaction is energy transferred from the surroundings to the reactants
exothermic
polyatomic
endothermic
polygenic
What type of reaction is the this CH4 + 2O2 → CO2 + 2H2O
synthesis
decomposition
combustion
double displacement
What type of reaction is this 2NH3 → N2 + 3H2
synthesis
decomposition
single displacement
double displacement
What type of reaction is this 2NaCl + H2SO4 → Na2SO4 + 2HCl
synthesis
decomposition
combustion
double displacement
What type of reaction is this Fe + S → FeS
synthesis
decomposition
single displacement
free radical
What type of reaction is this 2Li + 2H2O → 2LiOH + H2
redox
decomposition
single displacement
combustion
Which of the following is NOT an example of a physical change?
crumpling paper
sharpening a pencil
clothes shrinking
sour milk
Which of the following is NOT an example of chemical change?
sour milk
burning wood
breaking a pencil
rust
What does it mean when there is a physical change?
Matter has change from one substance into another.
Matter has change on the molecular level
A new substance has been formed.
Matter has changed size, shape or form.
A physical change is
a change where the characteristics do not change the substance
a change where the characteristics do change the substance
a change where the chemistry changes
A chemical change is when
the chemical properties change
the chemical properties do not change
a change where the characteristics do not change the substance
What changes did the water undergo?
Which student correctly recorded all the changes that took place?
