AP Chemistry · Topic 4.7
Types of Chemical Reactions Practice
Part of Chemical Reactions.(TRA-2.A)
Practice questions
16
Sample questions
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Sample 1difficulty 1/5
Aqueous AgNO3 is added to aqueous NaCl, producing a white solid.
The white precipitate formed is:
- A
Ag2O(s)
- B
NaNO3(s)
- C
Cl2(g)
- Dcheck_circle
AgCl(s)
Why
Ag+ and Cl- combine to form insoluble AgCl(s); Na+ and NO3- remain spectator ions.
- A
Sample 2difficulty 1/5
The reaction type shown is:
- A
Decomposition
- Bcheck_circle
Synthesis (combination)
- C
Single replacement
- D
Double replacement
Why
Two reactants combining into a single product (A + B -> AB) is a synthesis or combination reaction.
- A
Sample 3difficulty 1/5
AB -> A + B is which type of reaction?
- A
Combustion
- Bcheck_circle
Decomposition
- C
Synthesis
- D
Replacement
Why
A single compound breaking apart into simpler substances is a decomposition reaction.
- A
Sample 4difficulty 1/5
A + B → AB is a _______ reaction.
- A
Single replacement
- B
Double replacement
- C
Decomposition
- Dcheck_circle
Synthesis (combination)
Why
Two or more reactants combine to form one product.
- A
Sample 5difficulty 1/5
AB → A + B is a _______ reaction.
- A
Synthesis
- Bcheck_circle
Decomposition
- C
Acid-base
- D
Combustion
Why
One reactant breaks into two or more products. e.g., 2 H₂O₂ → 2 H₂O + O₂.
- A