Saturated hydrocarbons are called alkanes
· Small chain alkanes are used as fuels
3. The reaction is called combustion
4. The word equation for this chemical reaction is :
fuel (methane) + oxygen → carbon dioxide + water + ENERGY (heat, light, sound)
5. If there is insufficient oxygen then the word equation is:
fuel (methane) + oxygen → carbon monoxide + water + ENERGY (heat, light, sound)
6. The problem with this reaction is that carbon monoxide is produced this gas is a poisonous gas to the human body (see objective 5.11)
7. Where can you find incomplete combustion? In cars
8. What is used to reduce the harmful products from incomplete combustion?
9. During incomplete combustion a smoky flame is often seen, explain this observation
10. Describe the two chemical tests for water blue anhydrous cobalt chloride turns pink
11. Describe the chemical test for carbon dioxide gas lime water turns milky
12. Describe a physical test for water- boiling point 100 Celsius
Extn: write a balanced equation (with state symbols) for the combustion of propane gas
No comments:
Post a Comment