1.4.1 Types of Reactions

• Synthesis reactions involve the formation of a single product from two or more reactants.


  True
• Decomposition reactions are the opposite of synthesis reactions.


  True
• Provide an example of a single displacement reaction.

  Fe(s) + CuSO_{4}(aq) \rightarrow FeSO_{4}(aq) + Cu(s)</latex>
• Decomposition reactions are the reverse of synthesis reactions.


  True
• Steps in a double displacement reaction

  1️⃣ Reactant compounds dissolve in water

  2️⃣ Ions from each compound separate

  3️⃣ Cations and anions switch partners

  4️⃣ New compounds are formed
• What is the term for the starting materials in a chemical reaction?

  Reactants
• During a chemical reaction, atoms and molecules are rearranged
• Provide an example of a synthesis reaction.

  $2H_{2} +$$O_{2} \rightarrow 2H_{2}O$
• In a single displacement reaction, a more reactive metal replaces a less reactive metal
• Decomposition reactions involve the breakdown of a single compound
• Double displacement reactions involve the exchange of ions
• Match the reaction type with its example:

  Synthesis reaction ↔️ $2H_{2} +$$O_{2} \rightarrow 2H_{2}O$

  Decomposition reaction ↔️ $2H_{2}O_{2} \rightarrow 2H_{2}O +$$O_{2}$

  Single displacement reaction ↔️ $Fe(s) +$$CuSO_{4}(aq) \rightarrow FeSO_{4}(aq) +$$Cu(s)$

  Double displacement reaction ↔️ $NaCl(aq) +$$AgNO_{3}(aq) \rightarrow AgCl(s) +$$NaNO_{3}(aq)$
• Provide an example of a decomposition reaction.

  $2H_{2}O_{2} \rightarrow 2H_{2}O +$$O_{2}$
• What is the defining characteristic of a synthesis reaction?

  Combining smaller molecules
• What happens in a single displacement reaction?

  One element replaces another
• Combustion reactions always require oxygen to proceed.

  True