Types of Reactions

The following is what type of reaction:
PbCl₂ + AgNO₃ → Pb(NO₃)₂ + AgCl

• Combination/Synthesis

• Decomposition
• Single Displacement

• Double Displacement

The following is what type of reaction:
NH₃ + HCl  → NH₄Cl

• Combination/Synthesis

• Decomposition
• Single Displacement

• Double Displacement

What is decomposition?

• putting substances together
• breaking substances apart
• element displacing another element in a compound

• burning of a substance

Ions in two compounds switch. 

• Combination/Synthesis

• Combustion
• Single Displacement

• Double Displacement

What type of reaction is taking place in this picture?

• Combination/Synthesis

• Decomposition
• Single Displacement

• Double Displacement

4Si   + S₈   -->   2Si₂S₄

• Combination/Synthesis

• Decomposition
• Single Displacement
• Double Displacement

What reaction has the following general formula:

A + CD --> C + AD

• Combination/Synthesis

• Decomposition

• Single Displacement

• Double Displacement

• Combustion

What type of reaction involves one element replacing another element in a compound?

• Single Replacement Reaction

• Double Replacement Reaction

• Synthesis Reaction

• Decomposition Reaction

Balancing this reaction:

____ CH₄ + ____ O₂ ---> ___ CO₂ + ____ H₂O

• 2,1,3,1

• 1,2,1,2

• 1,2,2,1

• 2,1,1,2

The red numbers in the image below represent ________

• subscripts
• coefficients
• I don't know, and don't want to try
• None of the answers are correct