CLASSIFYING AND ENDO EXO TEST

Classify
Zn + H₂S → ZnS + H₂

• synthesis
• combustion
• single replacement
• double replacement

Classify
CH₄ + O₂ → CO₂ + H₂O 

• single replacement
• double replacement
• synthesis
• combustion

Classify
FeS + HCl → H₂S + FeCl₂

• synthesis
• combustion
• single replacement
• double replacement

Classify
Fe + O₂ → Fe₂O₃

• synthesis
• decomposition
• double replacement 
• single replacement

Pb(NO₃)₂  +  KI --> PbI₂ + KNO₃
What type of reaction is this? 

• Synthesis 
• Decomposition 
• Single Replacement
• Double Replacement 

__Na  +  O₂ ----->  __Na₂O
Type of reaction? 
Balance it too. :)

• Synthesis, 2Na /  4Na₂O
• Decomposition, 4Na /  2Na₂O
• Synthesis, 4Na /  2Na₂O
• Decomposition, 2Na /  4Na₂O

What type of reaction is this?  
__H₂O₂ ---->  __H₂O + O₂

• Synthesis
• Decomposition 
• Single Replacement
• Combustion 

2HI --> H₂ + I₂

• synthesis
• decomposition
• single replacement
• double replacement

Mg + HCl --> MgCl₂ + H₂

• combustion
• synthesis
• decomposition
• single replacement

Mg + N₂ →Mg₃N₂

• Synthesis

• Decomposition

• Single replacement

• Combustion