Types of Chemical Reactions

Negative ions in two  compounds switch places, forming two new compounds

• Synthesis
• Decomposition
• Replacement
• Combustion

One compound breaks down and forms two or more substances

• Synthesis
• Decomposition
• Replacement
• Combustion

A substance combines with oxygen and releases energy

• Synthesis
• Decomposition
• Replacement
• Combustion

Energy can be released as light or heat

• Synthesis
• Decomposition
• Replacement
• Combustion

Oxygen is always a reactant.

• Synthesis
• Decomposition
• Replacement
• Combustion

Hydrogen peroxide breaking down into water and oxygen is an example

• Synthesis
• Decomposition
• Replacement
• Combustion

2 reactants produce 1 product

• Synthesis
• Decomposition
• Replacement
• Combustion

Mg + H₂0 --> MgO + H₂

• Synthesis
• Decomposition
• Replacement
• Combustion

MgO + H₂O --> Mg(OH)

• Synthesis
• Decomposition
• Replacement
• Combustion

CH₄ + 2O₂ --> CO₂ + 2H₂0

• Synthesis
• Decomposition
• Replacement
• Combustion