2.5 Incomplete combustion

• Scheikunde
• Middelbare school
• havo
• Leerjaar 3

Incomplete combustion

Learning goals

At the end of the lesson you can:

• Write a reaction equation of a incomplete combustion.
• Name the reagents to identify water en carbondioxide.

Incomplete combustion

• Insufficient oxygen
• Yellow flame
  
• 
  
• C and CO

Complete combustion

• Enough oxygen
• Blue flame
•  
• 
  

H​2​​O

H​2​​O

CO​2​​

Incomplete combustion

Reaction equation incomplete combustion

Demo - Reagents

Reagent for water

Reagent for carbondioxide

What is incomplete combustion?
A combustion with ........
oxygen

1. too much
2. insufficient
3. no
4. enough

What color becomes a flame with incomplete combustion?

1. yellow
2. blue

Has there been complete combustion?

1. yes
2. no

What type of reaction is this?

2C​8​​H​18​​+25O​2​​−>16CO​2​​+18H​2​​O

1. Seperation
2. Complete combustion
3. Decomposition reaction
4. Incomplete combustion

Ethanol + oxygen --> carbondioxide + carbon + water

This reaction is ...

1. Complete combustion
2. Incomplete combustion
3. No combustion

Making exercises

Make 53 (10 minutes in silence)
Finished? Make 48, 49, 58, 59

Reflection

At the end of the lesson you can:

• Write a reaction equation of a incomplete combustion.
• Name the reagents to identify water en carbondioxide.