Chapter 12 - Lesson 2: Types of Chemical Reactions

In a __________ reaction, two or more substances combine to form another substance.

• synthesis
• decomposition
• single displacement
• double displacement

The formula AB → A + B represents what type of chemical reaction?

• synthesis

• decomposition

• single displacement

• double displacement

Which of the following general formulas represents a single-displacement reaction?

• AB → A + B

• A + B → AB

• A + BC → AC + B

• AB + CD → AD + CB

An insoluble compound that comes out of solution during a double displacement reaction is called a __________.

• solvent
• reactant
• precipitate
• catalyst

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

• synthesis

• single displacement

• double displacement

• decomposition

What type of reaction produces a precipitate?

• single displacement

• synthesis

• double displacement

• decomposition

The following equation represents what type of chemical reaction: 2H₂(g) + O₂(g) → ?

• synthesis

• single displacement

• double displacement

• decomposition

If electric current passes through water and initiates a decomposition reaction, what are the expected products?

• hydrogen and oxygen

• hydrogen oxide

• hydrogen peroxide

• oxygen and water