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Types of Chemical Reactions and Predicting Products Quiz

#1

What type of reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?

Combustion
Explanation

Formation of water from hydrogen and oxygen combustion.

#2

Which of the following is a characteristic of an acid-base neutralization reaction?

Formation of water
Explanation

Acid-base neutralization reactions typically produce water.

#3

What type of reaction occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water?

Combustion
Explanation

Combustion reaction where hydrocarbons burn in oxygen to produce CO2 and H2O.

#4

In the reaction 2KClO₃ → 2KCl + 3O₂, what type of reaction is represented?

Decomposition
Explanation

Decomposition reaction where a compound breaks down into simpler substances.

#5

What type of reaction occurs when a metal displaces a less reactive metal ion in a solution?

Single replacement
Explanation

Single replacement reaction where a more reactive metal displaces a less reactive metal ion in a compound.

#6

In the reaction FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl, what type of reaction is represented?

Double replacement
Explanation

Double replacement reaction where positive and negative ions of two compounds exchange places to form new compounds.

#7

What type of reaction occurs when an element reacts with a compound and displaces another element?

Single replacement
Explanation

Single replacement reaction where an element displaces another element in a compound.

#8

Which of the following is a double displacement reaction?

2NaCl + Pb(NO₃)₂ → 2NaNO₃ + PbCl₂
Explanation

Double displacement reaction where ions of two compounds exchange to form two new compounds.

#9

Which of the following is a precipitation reaction?

2NaCl + Pb(NO₃)₂ → 2NaNO₃ + PbCl₂
Explanation

Precipitation reaction where an insoluble solid (precipitate) forms.

#10

What type of reaction is represented by the equation: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂?

Decomposition
Explanation

Decomposition reaction where a compound breaks down into simpler substances.

#11

Which of the following is a redox reaction?

2H₂ + O₂ → 2H₂O
Explanation

Redox reaction involving the transfer of electrons between reactants.

#12

What type of reaction is represented by the equation: NH₄NO₃ → N₂O + 2H₂O?

Decomposition
Explanation

Decomposition reaction where a compound breaks down into simpler substances.

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