Types of Chemical Reactions Quiz

What is a chemical reaction?

• A process where products are rearranged to form reactants

• A process where reactants are rearranged to form products

• A process where products are broken down into reactants

• A process where reactants remain unchanged

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

NGSS.MS-PS1-1

Which of the following is NOT one of the 5 basic types of chemical reactions?

• Synthesis

• Decomposition

• Single displacement

• Polymerization

What occurs during a synthesis reaction?

• One complex substance breaks down into simpler parts

• Two or more simpler substances combine to form a more complex substance

• One substance replaces another in a compound

• Two compounds exchange ions

Tags

NGSS.MS-PS1-1

Which of the following is an example of a synthesis reaction?

• 2 Na + Cl₂ → 2 NaCl

• 2 HgO → 2 Hg + O₂

• 2 H₂O → 2 H₂ + O₂

• NaCl → Na + Cl₂

Tags

NGSS.MS-PS1-5

What occurs during a decomposition reaction?

• Two or more simpler substances combine to form a more complex substance

• One complex substance breaks down into simpler parts

• One substance replaces another in a compound

• Two compounds exchange ions

Which of the following is an example of a decomposition reaction?

• 2 H₂ + O₂ → 2 H₂O

• 2 Na + Cl₂ → 2 NaCl

• 2 HgO → 2 Hg + O₂

• Na + Cl₂ → NaCl

What is the general format of a synthesis reaction?

• A + B → AB

• AB → A + B

• A + B → A + B

• AB → AB

What is the general format of a decomposition reaction?

• A + B → AB

• AB → A + B

• A + B → A + B

• AB → AB

What occurs in a single displacement reaction?

• A) A more reactive element displaces a less reactive element in a compound.

• B) Two compounds switch places to form two different compounds.

• C) A fuel combines with oxygen to yield carbon dioxide and water.

• D) A compound breaks down into two or more simpler substances.

What is often formed during single displacement reactions?

• A) Water

• B) Precipitate

• C) Carbon dioxide

• D) Oxygen