Chemical Reactions

An element plus additional element reacts to form one product is an example of which type of chemical reaction? 

• combustion
• decomposition 
• synthesis 
• single replacement

What two molecules are produced in a combustion reaction?

• CO₂ + NH₄
• SiO₂ + H₂O
• H₂O + CO₂
• CO₂ + H₂O₂

Which of the following can be categorized as a synthesis reaction?

• Ba + NaCl →BaCl₂ + Na
• KNO₃→K⁺ + NO₃^-
• 2Li + F₂ → 2LiF
• HCl + LiNO₃ → HNO₃ + LiCl

What type of reaction is displayed below?
2Al + Fe₂O₃ → 2Fe + Al₂O₃

• Single Replacement
• Double Replacement
• Synthesis
• Combustion

What type of reaction is characterized by two compounds switching bonding partners?

• Single Replacement
• Combustion
• Synthesis
• Double Replacement

A decomposition reaction can be represented as _____________________.

• AB  → A + B
• A + B → AB
• AB + CD → AC + BD
• A + BC → B + AC

What is a double replacement?

• Two compounds react to form two new compounds.
• One compound reacts to form two separate elements.
• Two elements reacting to form a single compound.
• A hydrocarbon and oxygen react producing carbon dioxide and water.

The reaction A + B --> AB is classified as a _____ reaction.

• synthesis

• decomposition

• single replacment

• double replacement

What class of reaction best describes the equation below: 2HI --> H₂ + I₂

• synthesis

• decomposition

• single replacement

• double replacement

What class of reaction best describes the equation below: Zn + H₂S --> ZnS + H₂

• synthesis

• combustion

• single replacement

• double replacement