Chemical Reactions Quiz

What is a synthesis reaction?

• A reaction where two or more substances combine to form a single product.

• A reaction where a compound breaks down into two or more simpler substances.

• A reaction where elements exchange between compounds.

• A reaction involving the release of heat and light.

Which of the following best defines a decomposition reaction?

• A reaction where heat is absorbed.

• A reaction where two compounds form one compound.

• A reaction where a single compound breaks down into two or more simpler substances.

• A reaction where oxygen combines with another substance.

What is the characteristic of a single replacement reaction?

• One element replaces another element in a compound.

• Two elements or compounds combine to form one product.

• Two compounds exchange ions to form two new compounds.

• A reaction that results in the formation of water.

Which of the following best describes a double replacement reaction?

• One element replaces another element in a compound.

• A single compound breaks down into simpler substances.

• Two compounds exchange ions to form two new compounds.

• A compound reacts with oxygen to produce energy.

What happens in a combustion reaction?

• Two elements combine to form a new compound.

• A hydrocarbon reacts with oxygen gas to produce specific products.

• An acid reacts with a base to form salt and water.

• A compound is broken down into simpler substances using heat.

What is the general format of a synthesis reaction?

• AB → A + B

• A + B → AB

• A + BC → AC + B

• AB + CD → AD + BC

Which of the following represents the general format of a decomposition reaction?

• A + B → AB

• AB → A + B

• AB + CD → AD + BC

• A + BC → AC + B

What is the general equation for a single replacement reaction?

• AB → A + B

• A + B → AB

• A + BC → AC + B

• AB + CD → AD + BC

Which equation best describes a double replacement reaction?

• A + B → AB

• AB → A + B

• A + BC → AC + B

• AB + CD → AD + CB

What is the general format for a combustion reaction?

• AB → A + B

• A + B → AB

• A + O₂ → CO₂ + H₂O

• A + BC → AC + B