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CHEMISTRY FORM 2


1. STRUCTURE OF THE ATOM, AND THE PERIODIC TABLE
2. CHEMICAL FAMILIES AND PATTERNS IN PROPERTIES
3. CHEMICAL BONDING AND STRUCTURE
4. SALTS
5. EFFECT OF AN ELECTRIC CURRENT ON SUBSTANCES
6. CARBON AND SOME OF ITS COMPOUNDS
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Carbon and some of its compounds: Effect of carbon (II) oxide and carbon (IV) oxide on the environment

6.0 Carbon and some of its compounds


6.6 Effect of carbon (II) oxide and carbon (IV) oxide on the environment


Carbon (IV) oxide gas keeps the atmosphere warm by trapping heat from the Sun. That is, carbon (IV) oxide has greenhouse effect. It is a greenhouse gas.


However, the percentage of carbon (IV) oxide gas has increased to dangerous levels due to burning of fossil fuels (coal, diesel, petrol, kerosene, gas etc) and cutting down trees which should absorb it. This continues to cause a temperature rise, called global warming, and increase in sea level as snow caps melt at the poles.


Besides, weather patterns have become unpredictable (erratic) and disasters such as floods, landslides and drought are so frequent (Figure 6.6).



Floods, landslides and drought caused by global warming, high school chemistry

Figure 6.6 Floods, landslides and drought caused by global warming


Carbon (II) oxide is released to the atmosphere mainly by incomplete burning of oil fuels such as petrol, diesel, and kerosene. But it also reacts with oxygen of the air to form carbon (IV) oxide, which is a greenhouse gas.


2CO(g)  +   O2(g)   ⟶   2CO2(g)


Climate change due to global warming is one of the greatest threats to human life today.