Chemical Reactions Quiz

What is another name for a Synthesis Reaction?

• Decomposition Reaction

• Single Replacement Reaction

• Combination Reaction

• Combustion Reaction

In a decomposition reaction, what happens to the compound?

• It combines with another compound

• It breaks down into simpler substances

• It remains unchanged

• It forms a new compound with added elements

What are the products of a combustion reaction?

• CO2+H2O+ light

• CO+HO

• light+H2O

• C+ H2O

What might be produced in an incomplete combustion of a hydrocarbon?

• CO2 and H2O

• CO and possibly C

• H2 and O2

• CH4 and CO2

In a decomposition reaction, the original compound is:

• Broken down into simpler substances

• Combined with another compound

• Converted into a more complex compound

• Left unchanged

What type of reaction is this

Cl2 + 2KBr → 2KCl + Br2

• synthesis

• double replacement

• single replacement

• decomposition

Which type of reaction is characterized by the equation: AB + CD → AD + CB?

• Synthesis Reaction

• Decomposition Reaction

• Single Replacement Reaction

• Double Replacement Reaction

In a synthesis reaction, what happens to the reactants?

• They are broken down into simpler substances.

• They combine to form a more complex substance.

• They are replaced by other elements.

• They release energy in the form of light.

What is the main characteristic of a single replacement reaction?

• A compound breaks down into simpler substances

• Two compounds exchange ions

• One element replaces another in a compound

• Two elements combine to form a compound

Which is a double replacement?

• Cl2 + 2KBr → 2KCl + Br2

• HCl + NaOH → H2O + NaCl

• 2Ag + S → Ag2S

• C4H8 + 6O2 → 4CO2 + 4H2O